42r-2(14-15r)+7=85

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Solution for 42r-2(14-15r)+7=85 equation: 



42r-2(14-15r)+7=85

We move all terms to the left:

42r-2(14-15r)+7-(85)=0

We add all the numbers together, and all the variables

42r-2(-15r+14)+7-85=0

We add all the numbers together, and all the variables

42r-2(-15r+14)-78=0

We multiply parentheses

42r+30r-28-78=0

We add all the numbers together, and all the variables

72r-106=0

We move all terms containing r to the left, all other terms to the right

72r=106

r=106/72

r=1+17/36

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