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klio [65]
3 years ago
7

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

Mathematics
2 answers:
Alina [70]3 years ago
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
Ede4ka [16]3 years ago
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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