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KiRa [710]
3 years ago
14

What is the value of y in the following system of equations? explain how you found your answer

Mathematics
2 answers:
AlekseyPX3 years ago
7 0

Step-by-step explanation:

I've used elimination method over here but it can also be done by using substitution.

Andreyy893 years ago
5 0
2x + 3y = 6
2x + y = -2

Solve the second equation for y and substitute into the first equation

2x + y = -2
y = -2x - 2

2x + 3y = 6
2x + 3(-2x - 2) = 6
2x - 6x - 6 = 6
-4x - 6 = 6
-4x = 12
x = -3

Plug back in to solve for y
2x + y = -2
2(-3) + y = -2
-6 + y = -2
y = 4

Plug into other equation to check
2x + 3y = 6
2(-3) + 3(4) = 6
-6 + 12 = 6
6 = 6 :)
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