2(9-8)+7=5(9+2)-3a

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Solution for 2(9-8)+7=5(9+2)-3a equation: 


Simplifying
2(9 + -8) + 7 = 5(9 + 2) + -3a

Combine like terms: 9 + -8 = 1
2(1) + 7 = 5(9 + 2) + -3a

Multiply 2 * 1
2 + 7 = 5(9 + 2) + -3a

Combine like terms: 2 + 7 = 9
9 = 5(9 + 2) + -3a

Combine like terms: 9 + 2 = 11
9 = 5(11) + -3a

Multiply 5 * 11
9 = 55 + -3a

Solving
9 = 55 + -3a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '3a' to each side of the equation.
9 + 3a = 55 + -3a + 3a

Combine like terms: -3a + 3a = 0
9 + 3a = 55 + 0
9 + 3a = 55

Add '-9' to each side of the equation.
9 + -9 + 3a = 55 + -9

Combine like terms: 9 + -9 = 0
0 + 3a = 55 + -9
3a = 55 + -9

Combine like terms: 55 + -9 = 46
3a = 46

Divide each side by '3'.
a = 15.33333333

Simplifying
a = 15.33333333

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