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-5x+8(20+3x)=19
We move all terms to the left:
-5x+8(20+3x)-(19)=0
We add all the numbers together, and all the variables
-5x+8(3x+20)-19=0
We multiply parentheses
-5x+24x+160-19=0
We add all the numbers together, and all the variables
19x+141=0
We move all terms containing x to the left, all other terms to the right
19x=-141
x=-141/19
x=-7+8/19
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