Question

what is the solution? solve for x
12 (3 - x) = 60

Answer 1

Isolate x. Then Solve for it.

Answer 2

x=-2

Answer 3

show the work?

Answer 4

Divide by 12. Subtract 3 from both sides. and divide by -1

Answer 5

let y=3-x

12y=60
get y on its own

divide by 12 on both sides

y=5

3-x=5
x=-2

Answer 6

Really no need for substitution, but mathematically sound.

Answer 7

sorry i have never done it via substitution just thought i would give it a go :P