3 years ago

What is the solution to the system of equations y=-3x- 2 and 5x+3y=15

1 answer:

8 0

Hello :
<span>y=-3x- 2 ...(1)
5x+3y=15...(2)
subsct in (2) : 5x +3(-3x-2) =15
5x-9x-6 = 15
-4x = 21
x = -21/4
y = -3(-21/4)-2 .....calculate </span>

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y = x - 2

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Substitute the first expression for y into the second equation.

x + (x - 2) = 12

2x - 2 = 12

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