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2.8(m-19)+-4=-15.2
We move all terms to the left:
2.8(m-19)+-4-(-15.2)=0
We add all the numbers together, and all the variables
2.8(m-19)+11.2=0
We multiply parentheses
2.8m-53.2+11.2=0
We add all the numbers together, and all the variables
2.8m-42=0
We move all terms containing m to the left, all other terms to the right
2.8m=42
m=42/2.8
m=15
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