7-2(2a-5)=9

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


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

Reorder the terms:
7 + -2(-5 + 2a) = 9
7 + (-5 * -2 + 2a * -2) = 9
7 + (10 + -4a) = 9

Combine like terms: 7 + 10 = 17
17 + -4a = 9

Solving
17 + -4a = 9

Solving for variable 'a'.

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

Add '-17' to each side of the equation.
17 + -17 + -4a = 9 + -17

Combine like terms: 17 + -17 = 0
0 + -4a = 9 + -17
-4a = 9 + -17

Combine like terms: 9 + -17 = -8
-4a = -8

Divide each side by '-4'.
a = 2

Simplifying
a = 2

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