5a+7=2a-9

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Solution for 5a+7=2a-9 equation:


Simplifying
5a + 7 = 2a + -9

Reorder the terms:
7 + 5a = 2a + -9

Reorder the terms:
7 + 5a = -9 + 2a

Solving
7 + 5a = -9 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
7 + 5a + -2a = -9 + 2a + -2a

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

Combine like terms: 2a + -2a = 0
7 + 3a = -9 + 0
7 + 3a = -9

Add '-7' to each side of the equation.
7 + -7 + 3a = -9 + -7

Combine like terms: 7 + -7 = 0
0 + 3a = -9 + -7
3a = -9 + -7

Combine like terms: -9 + -7 = -16
3a = -16

Divide each side by '3'.
a = -5.333333333

Simplifying
a = -5.333333333

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