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
Nitella [24]
3 years ago
15

Solve for y 4.2x - 1.4y = 2.1

Mathematics
2 answers:
NeX [460]3 years ago
3 0
4.2x - 1.4y = 2.1
-1.4y = -4.2x + 2.1
y = (-4.2/-1.4)x + 2.1/-1.4
y = 3x - 1.5 <==
Dima020 [189]3 years ago
3 0
<h2>Answer:</h2>

The value of y is:

         y=3x-1.5

<h2>Step-by-step explanation:</h2>

We are given a equation in terms of variable x and y as follows:

4.2x-1.4y=2.1

Now, we are asked to solve for y i.e. we are asked to find the value of y in terms of x and constant.

Now, we subtract 4.2x on both the sides of the equation to obtain:

          -1.4y=2.1-4.2x

On dividing both side of the equation by (-1.4) we get:

y=\dfrac{2.1}{-1.4}-\dfrac{4.2x}{-1.4}\\\\y=-1.5+3x\\\\i.e.\\\\y=3x-1.5

You might be interested in
3. Nine times ten to the negative third power
Harman [31]

Answer:the answer to this is 0.009

Step-by-step explanation:

5 0
3 years ago
A car travled 200 miles in 4 hours . What was the car average rate of speed in miles per hour ?
Dahasolnce [82]

rate = 200 miles/ 4 hours = 50 miles/hour

7 0
3 years ago
Read 2 more answers
All I need to know is how to do 13. After I know how to do 13, I'll know how to do the rest. Please show your work and explain i
s2008m [1.1K]
MK is the same as NL.
Just  read the rest of the questions.
They practically give you the answers.
7 0
3 years ago
If x=3 then solve the equation: y=10x×10x-7×-12
NNADVOKAT [17]
The answer is y = 545. 
7 0
3 years ago
Read 2 more answers
Which mental math strategy can be used to find the exact sum of 873 and 47? Check all that apply?
Vaselesa [24]

873 + 40 + 7 or 870 + 40 + 3 + 7

6 0
3 years ago
Other questions:
  • How many degree black belts in tae kwon do are there?
    15·1 answer
  • Which are points on the graph of y = 1.5 + ⌈x⌉
    10·1 answer
  • The sales tax on the purchase of a used truck is $945. If the tax rate is 7%, find the purchase price of the truck.
    9·1 answer
  • Which transformation on quadrilateral s must be include to result in Quadrilateral
    9·1 answer
  • Expand or factor each of the following expressions to determine which expressions are equivalent.
    10·1 answer
  • 11. The formula to find the AREA of a triangle is A = 1/2bh<br> True<br> False
    10·2 answers
  • from point a leah walked 40 yards south, 60 yards west, 10 yards north, and 20 yards east to point b. what is the length, in yar
    15·1 answer
  • What is the equation for the angle below?
    14·2 answers
  • Myles is tracking the growth of his palm tree. it was 62 inches when he bought it, and it has grown 6 inches per year. what does
    12·1 answer
  • You’ve gone to visit your friend in Germany. As you’re getting dressed for a day out, your friend tells you it’s 16 degrees (Cel
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!