3 years ago

3x = 9 - 6y

1 answer:

7 0

Equation 1) 3x = 9 - 6y
Equation 2) 3x + 8y = 9

Add 6y to both sides in equation #1.

1) 3x + 6y = 9
2) 3x + 8y = 9

Subtract equations from one another.

-2y = 0

Divide both sides by -2.

y = 0

Plug in 0 for y in the first equation.

3x = 9 - 6y

3x = 9 - 6(0)

Simplify.

3x = 9 - 0

Simplify.

3x = 9

Divide both sides by 3.

x = 3

So, x = 3, y = 0

~Hope I helped!~

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