7a-9=159a-30

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Solution for 7a-9=159a-30 equation:


Simplifying
7a + -9 = 159a + -30

Reorder the terms:
-9 + 7a = 159a + -30

Reorder the terms:
-9 + 7a = -30 + 159a

Solving
-9 + 7a = -30 + 159a

Solving for variable 'a'.

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

Add '-159a' to each side of the equation.
-9 + 7a + -159a = -30 + 159a + -159a

Combine like terms: 7a + -159a = -152a
-9 + -152a = -30 + 159a + -159a

Combine like terms: 159a + -159a = 0
-9 + -152a = -30 + 0
-9 + -152a = -30

Add '9' to each side of the equation.
-9 + 9 + -152a = -30 + 9

Combine like terms: -9 + 9 = 0
0 + -152a = -30 + 9
-152a = -30 + 9

Combine like terms: -30 + 9 = -21
-152a = -21

Divide each side by '-152'.
a = 0.1381578947

Simplifying
a = 0.1381578947

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