6a+15=2a+91

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Solution for 6a+15=2a+91 equation:


Simplifying
6a + 15 = 2a + 91

Reorder the terms:
15 + 6a = 2a + 91

Reorder the terms:
15 + 6a = 91 + 2a

Solving
15 + 6a = 91 + 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.
15 + 6a + -2a = 91 + 2a + -2a

Combine like terms: 6a + -2a = 4a
15 + 4a = 91 + 2a + -2a

Combine like terms: 2a + -2a = 0
15 + 4a = 91 + 0
15 + 4a = 91

Add '-15' to each side of the equation.
15 + -15 + 4a = 91 + -15

Combine like terms: 15 + -15 = 0
0 + 4a = 91 + -15
4a = 91 + -15

Combine like terms: 91 + -15 = 76
4a = 76

Divide each side by '4'.
a = 19

Simplifying
a = 19

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