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gayaneshka [121]
4 years ago
13

- 7 (3a - 4) + 7a = 14​

Mathematics
2 answers:
maria [59]4 years ago
6 0
-21a+28+7a=14
14=14a
a=1
s344n2d4d5 [400]4 years ago
4 0

Answer:

a=1

Step-by-step explanation:

- 7 (3a - 4) + 7a = 14

use distribute property

-21a+28+7a=14

simplify

-14a=14-28

-14a=-14

a=1

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