System of equations please help my teacher sent home a review packet from last year u don't remember this. help me

C

Step-by-step explanation:

Given the 2 equations

3y = x - 2 → (1)

y = - 2x + 4 → (2)

Substitute y = - 2x + 4 into (1)

3(- 2x + 4) = x - 2, that is

- 6x + 12 = x - 2 ( subtract x from both sides )

- 7x + 12 = - 2 ( subtract 12 from both sides )

- 7x = - 14 ( divide both sides by - 7 )

x = 2

Substitute x = 2 into (2) for corresponding value of y

y = - 2(2) + 4 = - 4 + 4 = 0

Thus x = 2 : y = 0 → C

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step-by-step explanation:

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w