8a+20=15a+55

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Solution for 8a+20=15a+55 equation:


Simplifying
8a + 20 = 15a + 55

Reorder the terms:
20 + 8a = 15a + 55

Reorder the terms:
20 + 8a = 55 + 15a

Solving
20 + 8a = 55 + 15a

Solving for variable 'a'.

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

Add '-15a' to each side of the equation.
20 + 8a + -15a = 55 + 15a + -15a

Combine like terms: 8a + -15a = -7a
20 + -7a = 55 + 15a + -15a

Combine like terms: 15a + -15a = 0
20 + -7a = 55 + 0
20 + -7a = 55

Add '-20' to each side of the equation.
20 + -20 + -7a = 55 + -20

Combine like terms: 20 + -20 = 0
0 + -7a = 55 + -20
-7a = 55 + -20

Combine like terms: 55 + -20 = 35
-7a = 35

Divide each side by '-7'.
a = -5

Simplifying
a = -5

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