2 years ago

A- 13 B- 130 C- 43 D- 10

Mathematics

1 answer:

Mumz [18]2 years ago

4 0

7x + 9 + 3x + 4 = 143

10x = 143 - 9 - 4

10x = 130

x = 13/10

x = 13 answer

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