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navik [9.2K]
3 years ago
8

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

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
4 0

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

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