3 years ago

6(2x-11)+15=21 is it correct

2 answers:

5 0

I got 6 for my answer, but I'm not 100% sure if I'm right.

6(2x-11)+15=21
12x-66+15=21
12x-51=21
+51 +51
12x=72
----- ----
12 12
x=6

4 0

6(2x - 11) + 15 = 21
12x - 66 + 15 = 21
12x = 21 + 66 - 15 = 72
x = 72/12 = 6

The answer is x = 6

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