Question

6x+12y=15 -6+2y=c Solve for C

Answer 1

Answer:

C = - 21 -6x

Step-by-step explanation:

6x + 12y = 15 (1)

- 6 + 2y = C (2)

multiply equation (2) by 6

- 36 + 12y = C (3)

subtract equation (1) from equation (3)

- 36 + 12y = C

6x + 12y = 15

___________

- 36 - 6x = C - 15

now we collect the terms (make C by itself)

- 36 + 15 - 6x = C (to do this we add 15 to both sides)

- 21 -6x = C

That's about as much as you can simplify it.

Hope this helps,

Cate