10(a-4)=90

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Solution for 10(a-4)=90 equation:


Simplifying
10(a + -4) = 90

Reorder the terms:
10(-4 + a) = 90
(-4 * 10 + a * 10) = 90
(-40 + 10a) = 90

Solving
-40 + 10a = 90

Solving for variable 'a'.

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

Add '40' to each side of the equation.
-40 + 40 + 10a = 90 + 40

Combine like terms: -40 + 40 = 0
0 + 10a = 90 + 40
10a = 90 + 40

Combine like terms: 90 + 40 = 130
10a = 130

Divide each side by '10'.
a = 13

Simplifying
a = 13

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