4(a+10)-6(2a+9)=146

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Solution for 4(a+10)-6(2a+9)=146 equation:


Simplifying
4(a + 10) + -6(2a + 9) = 146

Reorder the terms:
4(10 + a) + -6(2a + 9) = 146
(10 * 4 + a * 4) + -6(2a + 9) = 146
(40 + 4a) + -6(2a + 9) = 146

Reorder the terms:
40 + 4a + -6(9 + 2a) = 146
40 + 4a + (9 * -6 + 2a * -6) = 146
40 + 4a + (-54 + -12a) = 146

Reorder the terms:
40 + -54 + 4a + -12a = 146

Combine like terms: 40 + -54 = -14
-14 + 4a + -12a = 146

Combine like terms: 4a + -12a = -8a
-14 + -8a = 146

Solving
-14 + -8a = 146

Solving for variable 'a'.

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

Add '14' to each side of the equation.
-14 + 14 + -8a = 146 + 14

Combine like terms: -14 + 14 = 0
0 + -8a = 146 + 14
-8a = 146 + 14

Combine like terms: 146 + 14 = 160
-8a = 160

Divide each side by '-8'.
a = -20

Simplifying
a = -20

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