Answer:
x = 40°
Step-by-step explanation:
142 = 3x + 22
142 - 22 = 3x
120 = 3x
x = 120/3
x = 40
Check:
142 = 3*40 + 22
142 = 120+22
[tex]3x + 22 = 142 (vertica \: number \\ are \: equal \: each \: other)\\ \\ 3x = 142 - 22 \\ \\ 3x = 120 \\ \\ x = \frac{120}{3} \\ \\ x = 40[/tex]
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