4(a-9)=40

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Solution for 4(a-9)=40 equation: 


Simplifying
4(a + -9) = 40

Reorder the terms:
4(-9 + a) = 40
(-9 * 4 + a * 4) = 40
(-36 + 4a) = 40

Solving
-36 + 4a = 40

Solving for variable 'a'.

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

Add '36' to each side of the equation.
-36 + 36 + 4a = 40 + 36

Combine like terms: -36 + 36 = 0
0 + 4a = 40 + 36
4a = 40 + 36

Combine like terms: 40 + 36 = 76
4a = 76

Divide each side by '4'.
a = 19

Simplifying
a = 19

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