sydniebachman sydniebachman

30-05-2020
Mathematics

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please solve this fast late night homework session and I need to get as much done as possible...

Solve the system of linear equations by substitution

4x+3y=-1
3x + y=-7

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Аноним Аноним

30-05-2020

Answer:

-4

Step-by-step explanation:

4x+3y=-1

3x + y=-7

Solve for Y

3x+y=-7

-3x. -3x

y= -3x - 7

Plug in Y into the top equation

4x + 3 (-3x - 7) = -1

Distribute the Parenthesis

4x -9x-21=-1

Combine Like terms

-5x = 20

Divide by -5 on both sides

20/-5

x = -4

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