7+2a-3=-9

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Solution for 7+2a-3=-9 equation:


Simplifying
7 + 2a + -3 = -9

Reorder the terms:
7 + -3 + 2a = -9

Combine like terms: 7 + -3 = 4
4 + 2a = -9

Solving
4 + 2a = -9

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + 2a = -9 + -4

Combine like terms: 4 + -4 = 0
0 + 2a = -9 + -4
2a = -9 + -4

Combine like terms: -9 + -4 = -13
2a = -13

Divide each side by '2'.
a = -6.5

Simplifying
a = -6.5

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