Question

I need help. answer fast pls

Answer 1

Answer: 9) x = 2, 10) x = 3

Explanation:

9) (9x+7)+(-3x+20) = 39

9x + 7 -3x + 20 = 39

6x + 27 = 39

6x = 12

x = 2

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10) 3x + 5x = 24

8x = 24

x = 3