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
nexus9112 [7]
3 years ago
13

Solve each system using substitution: 1. 4x - 5y= -15 y= -3x + 22

Mathematics
1 answer:
Bumek [7]3 years ago
3 0
4x - 5y = -15
y = -3x + 22

Plug in your y= equation into the y variable in the other equation

  4x - 5 (y) = -15
            ^^
y = (-3x + 22) = -15

4x - 5 (-3x + 22) = -15

Distribute

4x + 15x - 110 = -15

Combine like terms and add 110 over to -15

19x = 95

Then, divide the whole equation by 19

x = 5

Then, plug in your x into your y= equation

y = -3 (5) + 22
y = -15 + 22
y = 7

<em><u>x = 5</u></em>
<em><u>y = 7</u></em>
<em><u>(5, 7)</u></em>
You might be interested in
PLEASE HELP!! 100 POINTS!! BRAINLIEST!! What is the GCF of the terms in the numerator and denominator? Rewrite the expression by
saul85 [17]

Answer:

2(2x-1)/x(x-4)

Step-by-step explanation:

4x^2-14x+6/x^3-7x^2+12x

2(2x^2-7x+3)/x(x^2-7x+12)

2(2x^2-6x-x+3)/x(x^2-4x-3x+12)

2(x-3)(2x-1)/x(x-4)(x-3)

6 0
3 years ago
What Fraction Is Equivalent to 3/9
QveST [7]
Equivalent fractions of \frac{3}{9} =  \frac{1}{3},  \frac{2}{6} and so on..
3 0
3 years ago
Read 2 more answers
What is the y-intercept ?
joja [24]
The y-intercept is 2. The y-intercept occurs when x is 0. In the graph, y is 2 when x is 0.
6 0
2 years ago
Evaluate 6(b - 3) + c; for b = 5 and c = 8
bulgar [2K]

Answer:

20

Step-by-step explanation:

given:

b=5

c=8

6(b-3)+ c

6(5-3)+8

6(2)+8

12+8

20

other method

6(b-3)+c

6b-18+8

30-18+8

12+8

20

4 0
2 years ago
Read 2 more answers
200g of gold is £4000. How much would 550g cost
Ne4ueva [31]

Answer:

£11,000.

Step-by-step explanation:

First, lets figure out how much 1g of gold costs by doing simple division:

£4000 / 200g = £20

1g = £20

Now we can multiply the cost of 1g of gold by 550g

£20 * 550g = £11,000

550g of gold would cost £11,000.

<em>I would appreciate brainliest, if not that's ok!</em>

5 0
3 years ago
Read 2 more answers
Other questions:
  • Steve increases his math average by 9 points over a period of 15 weeks. How many points per week did he average?
    13·1 answer
  • I need help with my homework​
    8·2 answers
  • 1/6 minus 1/10 simplifiy
    8·2 answers
  • Can some one help me plz trying to figure out? Need help ASAP
    8·1 answer
  • Please answer this correctly without making mistakes
    6·1 answer
  • If f(x)=2x²-x find f(-3)
    13·2 answers
  • Will give brainliest if right, please help me with this math question
    11·2 answers
  • Subtact: (3x + 4) - (x + 2)​
    10·2 answers
  • The slope of the line y=2/3x+5/9 is M=
    8·1 answer
  • A website sells sweaters. The amount of sales p(c) varies directly with the number of customers c.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!