3 years ago

What is the solution to this system of equation? x=2y-4 7x+5y= -66

Mathematics

2 answers:

mina [271]3 years ago

8 0

Answer:

Step-by-step explanation:

oh gosh

im sorry but idk how to solve that, mabye if i say you are smart you will be motivated?

Agata [3.3K]3 years ago

6 0

Answer:

x=-8 y=-2

Step-by-step explanation:

substitute x for 2y-4

7(2y-4)+5y=-66

factor

14y-28+5y=-66

add 28 on both sides

14y+5y=-38

19y=-38

divide by 19 on both sides

y=-(38/19)

y=-2

Plug -2 into the first equation for y

x=2(-2)-4

x=-4-4

x=-8

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Step-by-step explanation:

Hi!

Here is your answer,

I will explain in step by step,

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