2a-15=7a

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Solution for 2a-15=7a equation:


Simplifying
2a + -15 = 7a

Reorder the terms:
-15 + 2a = 7a

Solving
-15 + 2a = 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-15 + 2a + -7a = 7a + -7a

Combine like terms: 2a + -7a = -5a
-15 + -5a = 7a + -7a

Combine like terms: 7a + -7a = 0
-15 + -5a = 0

Add '15' to each side of the equation.
-15 + 15 + -5a = 0 + 15

Combine like terms: -15 + 15 = 0
0 + -5a = 0 + 15
-5a = 0 + 15

Combine like terms: 0 + 15 = 15
-5a = 15

Divide each side by '-5'.
a = -3

Simplifying
a = -3

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