1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivann1987 [24]
3 years ago
9

Solve for a. 7a-2b = 5a+b

Mathematics
2 answers:
andrew11 [14]3 years ago
8 0

Answer:  The required value of a is \dfrac{3}{2}b.

Step-by-step explanation:  We are given to solve the following equation for variable a :

7a-2b=5a+b~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To solve the above equation for a, we need to take terms involving a on one side of equality that that involving b on the other side.

So, from equation (i), we get

7a-2b=5a+b\\\\\Rightarrow 7a-5a=b+2b\\\\\Rightarrow 2a=3b\\\\\Rightarrow a=\dfrac{3}{2}b.

Thus, the required value of a is \dfrac{3}{2}b.

nordsb [41]3 years ago
7 0
7a-2b = 5a + b
2a=3b
a = 3b/2
You might be interested in
3x - 7 = 3x + 9; x =<br><br> Please can someone help me and show me the answers step by steps
anyanavicka [17]

Answer:

i think probably x∉∅

Step-by-step explanation:

3x-7 = 3x+9

-7 = 9

so x∉∅

5 0
2 years ago
Read 2 more answers
I’m stuck and I would really like your help.
Neporo4naja [7]

Answer:

Answer: 1/12

Step-by-step explanation:

2/5x-4=8-3/5x.

We want to tank x out of the denominator by multiplying x on both sides.

2/5-4x=8x-3/5

Now we simplify

-12x=-1

x=1/12

Put x in the equation to check it

6 0
3 years ago
Read 2 more answers
pe ling needs to yard of fabric for a craft project she has 3 feet already how many inches of fabric does she still need
zheka24 [161]
She still needs 36 inches of fabric 
5 0
3 years ago
One serving of the food product contains 1g total saturated fat or 5% daily value (DV) for saturated fat. What is the daily valu
Leona [35]

Answer:

The daily value for saturated fat is 20g.

Step-by-step explanation:

Percentage problems can be solved by rule of three

In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.

When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too. In this case, the rule of three is a cross multiplication.

When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease. In this case, the rule of three is a line multiplication.

A percentage problem is an example where the relationship between the measures is direct.

The problem states that 1g is 5% of the daily value for saturated fat. The daily value(100%) for saturated fat is x, so:

1g - 5%

xg - 100%

5x = 100

x = \frac{100}{5}

x = 20g

The daily value for saturated fat is 20g.

6 0
3 years ago
Help me, I’ll give you brainliest. :)
lions [1.4K]

Answer:

72, give me brainliest please

6 0
2 years ago
Read 2 more answers
Other questions:
  • What's the answer for X?
    10·2 answers
  • Given triangle 'ABC' with a = 4, b = 11, and measurement of A = 41 Degrees , find the number of distinct solutions.
    8·1 answer
  • Dilate the segment about the origin by a scale factor of 1 /2 What are the coordinates of B'?
    7·2 answers
  • The mean is the measure of central tendency most likely to be affected by an outlier.
    5·1 answer
  • MATH LOVERS!!! Can u send me a pic of you filling this out plz!!!!
    15·2 answers
  • Greater than or less than the base?
    9·1 answer
  • Jaylynn draws a hen on graph paper using the scale shown below. The hen has a height of 161616 units in the drawing.
    14·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Ctextbf%20%7BSolve%20for%20x%20%3A%7D%20" id="TexFormula1" title=" \textbf {Solve for x :
    9·2 answers
  • What is inequality notation and in interval notation? My teacher did not explain this to me and now I am stumped on my homework
    11·1 answer
  • HELP ME PLEASEEEEEEEEEE
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!