Solve for x
x=3
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10x+5+5+7x+5=66
Combine 4x and 6x to get 10x.
10x+10+7x+5=66
Add 5 and 5 to get 10.
17x+10+5=66
Combine 10x and 7x to get 17x.
17x+15=66
Add 10 and 5 to get 15.
17x=66-15
Subtract 15 from both sides.
17x=51
Subtract 15 from 66 to get 51.
x=\frac{51}{17}
Divide both sides by 17.
x=3
Divide 51 by 17 to get 3.
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