9(20-4)=6(a+2)

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Solution for 9(20-4)=6(a+2) equation:


Simplifying
9(20 + -4) = 6(a + 2)

Combine like terms: 20 + -4 = 16
9(16) = 6(a + 2)

Multiply 9 * 16
144 = 6(a + 2)

Reorder the terms:
144 = 6(2 + a)
144 = (2 * 6 + a * 6)
144 = (12 + 6a)

Solving
144 = 12 + 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
144 + -6a = 12 + 6a + -6a

Combine like terms: 6a + -6a = 0
144 + -6a = 12 + 0
144 + -6a = 12

Add '-144' to each side of the equation.
144 + -144 + -6a = 12 + -144

Combine like terms: 144 + -144 = 0
0 + -6a = 12 + -144
-6a = 12 + -144

Combine like terms: 12 + -144 = -132
-6a = -132

Divide each side by '-6'.
a = 22

Simplifying
a = 22

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