7a+15=11a-3

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Solution for 7a+15=11a-3 equation:


Simplifying
7a + 15 = 11a + -3

Reorder the terms:
15 + 7a = 11a + -3

Reorder the terms:
15 + 7a = -3 + 11a

Solving
15 + 7a = -3 + 11a

Solving for variable 'a'.

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

Add '-11a' to each side of the equation.
15 + 7a + -11a = -3 + 11a + -11a

Combine like terms: 7a + -11a = -4a
15 + -4a = -3 + 11a + -11a

Combine like terms: 11a + -11a = 0
15 + -4a = -3 + 0
15 + -4a = -3

Add '-15' to each side of the equation.
15 + -15 + -4a = -3 + -15

Combine like terms: 15 + -15 = 0
0 + -4a = -3 + -15
-4a = -3 + -15

Combine like terms: -3 + -15 = -18
-4a = -18

Divide each side by '-4'.
a = 4.5

Simplifying
a = 4.5

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