2(9-1)-5a=7

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Solution for 2(9-1)-5a=7 equation:


Simplifying
2(9 + -1) + -5a = 7

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

Multiply 2 * 8
16 + -5a = 7

Solving
16 + -5a = 7

Solving for variable 'a'.

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

Add '-16' to each side of the equation.
16 + -16 + -5a = 7 + -16

Combine like terms: 16 + -16 = 0
0 + -5a = 7 + -16
-5a = 7 + -16

Combine like terms: 7 + -16 = -9
-5a = -9

Divide each side by '-5'.
a = 1.8

Simplifying
a = 1.8

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