40=4a

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Solution for 40=4a equation:


Simplifying
40 = 4a

Solving
40 = 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
40 + -4a = 4a + -4a

Combine like terms: 4a + -4a = 0
40 + -4a = 0

Add '-40' to each side of the equation.
40 + -40 + -4a = 0 + -40

Combine like terms: 40 + -40 = 0
0 + -4a = 0 + -40
-4a = 0 + -40

Combine like terms: 0 + -40 = -40
-4a = -40

Divide each side by '-4'.
a = 10

Simplifying
a = 10

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