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5(20+t)=2(30+t)
We move all terms to the left:
5(20+t)-(2(30+t))=0
We add all the numbers together, and all the variables
5(t+20)-(2(t+30))=0
We multiply parentheses
5t-(2(t+30))+100=0
We calculate terms in parentheses: -(2(t+30)), so:We get rid of parentheses
2(t+30)
We multiply parentheses
2t+60
Back to the equation:
-(2t+60)
5t-2t-60+100=0
We add all the numbers together, and all the variables
3t+40=0
We move all terms containing t to the left, all other terms to the right
3t=-40
t=-40/3
t=-13+1/3
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