2a+8=9a+7

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Solution for 2a+8=9a+7 equation:


Simplifying
2a + 8 = 9a + 7

Reorder the terms:
8 + 2a = 9a + 7

Reorder the terms:
8 + 2a = 7 + 9a

Solving
8 + 2a = 7 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
8 + 2a + -9a = 7 + 9a + -9a

Combine like terms: 2a + -9a = -7a
8 + -7a = 7 + 9a + -9a

Combine like terms: 9a + -9a = 0
8 + -7a = 7 + 0
8 + -7a = 7

Add '-8' to each side of the equation.
8 + -8 + -7a = 7 + -8

Combine like terms: 8 + -8 = 0
0 + -7a = 7 + -8
-7a = 7 + -8

Combine like terms: 7 + -8 = -1
-7a = -1

Divide each side by '-7'.
a = 0.1428571429

Simplifying
a = 0.1428571429

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