Question

2/3(c-18)=7 help me find c

Answer 1

Multiply both sides by 3:

3 * 2/3(c-18) = 3* 7

2(c - 18) = 21

then divide both sides by 2:

2(c-18) / 2 = 21/2

c - 18 = 21/2

THen add 18 to both sides:

c - 18 + 18 = 21/2 + 18

c = 21/2 + 18

Then just simplify the value of c by replacing 18 by 36/2:

c = 21/2 + 18 = 21/2 + 36/2 = (21+36)/2 = 57/2

So c = 57/2 (or 23 1/2)

Answer 2

thank you very much :)