10(12-x)+x+54=10x+12-x
The ans is 39 match your steps with it and make x=39
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Answered by
3
Step-by-step explanation:
10(12-x)+x+54 = 10x+12-x
120-10x+x+54 = 9x+12
-9x + 174 = 9x + 12
-18x = -162
x = 9
Answered by
1
Step-by-step explanation:
10(12-x)+x+54=10x+12-x
120 - 10x + x +54 = 10x +12-x
162 - 9x = 9x
18x = 162
x = 162/18 = 81/9 = 9
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