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0.5(x+7)+9=13
We move all terms to the left:
0.5(x+7)+9-(13)=0
We add all the numbers together, and all the variables
0.5(x+7)-4=0
We multiply parentheses
0.5x+3.5-4=0
We add all the numbers together, and all the variables
0.5x-0.5=0
We move all terms containing x to the left, all other terms to the right
0.5x=0.5
x=0.5/0.5
x=1
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