70+0.80a=30+90a

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Solution for 70+0.80a=30+90a equation:


Simplifying
70 + 0.80a = 30 + 90a

Solving
70 + 0.80a = 30 + 90a

Solving for variable 'a'.

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

Add '-90a' to each side of the equation.
70 + 0.80a + -90a = 30 + 90a + -90a

Combine like terms: 0.80a + -90a = -89.2a
70 + -89.2a = 30 + 90a + -90a

Combine like terms: 90a + -90a = 0
70 + -89.2a = 30 + 0
70 + -89.2a = 30

Add '-70' to each side of the equation.
70 + -70 + -89.2a = 30 + -70

Combine like terms: 70 + -70 = 0
0 + -89.2a = 30 + -70
-89.2a = 30 + -70

Combine like terms: 30 + -70 = -40
-89.2a = -40

Divide each side by '-89.2'.
a = 0.4484304933

Simplifying
a = 0.4484304933

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