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0.7x+-0.9(3-x)=2.9
We move all terms to the left:
0.7x+-0.9(3-x)-(2.9)=0
We add all the numbers together, and all the variables
0.7x-0.9(-1x+3)+-(2.9)=0
We add all the numbers together, and all the variables
0.7x-0.9(-1x+3)-2.9=0
We multiply parentheses
0.7x+0.9x-2.7-2.9=0
We add all the numbers together, and all the variables
1.6x-5.6=0
We move all terms containing x to the left, all other terms to the right
1.6x=5.6
x=5.6/1.6
x=3+0.8/1.6
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