3 years ago

Ill give brainliest Your options are:A. 115B. 42C. 159D. 21

Mathematics

1 answer:

nikklg [1K]3 years ago

5 0

Answer:

the answer is D

Step-by-step explanation:

3x-21=x+7

2x-21=7

2x=28

x=14

substitute x for 14

14+7=21

2X14-21+21

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Read 2 more answers

Ill give brainliest Your options are:A. 115B. 42C. 159D. 21​

Ill give brainliest Your options are:A. 115B. 42C. 159D. 21