Question

Can someone help me with this please

Answer 1

Ok so we'll  go ahead and solve for y first -  we just need to get it alone on one side of the equal sign

Step 1: subtract 2x from each side

2x - 7y - 2x = 19 - 2x

This cancels out the 2x on the left, giving us

-7y = 19 - 2x

Step 2: divide both sides by -7

$\frac{-7y}{-7}$ = $\frac{19}{-7}$ + $\frac{-2x}{-7}$

This gives us

y = -19/7 + 2x/7

That should be your answer for the first question. Now solving the next parts are easy. All you need to do is plug in x.

When x = -3

y = -19/7 + 2x/7

y = -19/7 + 2(-3)/7

y = -19/7 - 6/7

y = -25/7

When x = 0

y = -19/7 + 2x/7

y = -19/7 + 2(0)/7

y = -19/7

When x = 3

y = -19/7 + 2x/7

y = -19/7 + 2(3)/7

y = -19/7 + 6/7

y = -13/7

Hope that helps! Feel free to ask if I can help with anything else :)