256=144+20a

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Solution for 256=144+20a equation:


Simplifying
256 = 144 + 20a

Solving
256 = 144 + 20a

Solving for variable 'a'.

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

Add '-20a' to each side of the equation.
256 + -20a = 144 + 20a + -20a

Combine like terms: 20a + -20a = 0
256 + -20a = 144 + 0
256 + -20a = 144

Add '-256' to each side of the equation.
256 + -256 + -20a = 144 + -256

Combine like terms: 256 + -256 = 0
0 + -20a = 144 + -256
-20a = 144 + -256

Combine like terms: 144 + -256 = -112
-20a = -112

Divide each side by '-20'.
a = 5.6

Simplifying
a = 5.6

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