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1.3(8-x)+3.7x=-2.5
We move all terms to the left:
1.3(8-x)+3.7x-(-2.5)=0
We add all the numbers together, and all the variables
1.3(-1x+8)+3.7x-(-2.5)=0
We add all the numbers together, and all the variables
3.7x+1.3(-1x+8)+2.5=0
We multiply parentheses
3.7x-1.3x+10.4+2.5=0
We add all the numbers together, and all the variables
2.4x+12.9=0
We move all terms containing x to the left, all other terms to the right
2.4x=-12.9
x=-12.9/2.4
x=-5+0.9/2.4
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