Answer:
Explanation:
5)50=x+59 => x=-9
6)x+77=70 => x=-7
7)x+123=115 => x=-8
8)11x-1=10x+10 +> x=11
9)120+5x+10=180 => 5x=50 =>x=10
10)125=x+134 => x=9
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