4(a+5)-2(a+6)=3

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Solution for 4(a+5)-2(a+6)=3 equation:


Simplifying
4(a + 5) + -2(a + 6) = 3

Reorder the terms:
4(5 + a) + -2(a + 6) = 3
(5 * 4 + a * 4) + -2(a + 6) = 3
(20 + 4a) + -2(a + 6) = 3

Reorder the terms:
20 + 4a + -2(6 + a) = 3
20 + 4a + (6 * -2 + a * -2) = 3
20 + 4a + (-12 + -2a) = 3

Reorder the terms:
20 + -12 + 4a + -2a = 3

Combine like terms: 20 + -12 = 8
8 + 4a + -2a = 3

Combine like terms: 4a + -2a = 2a
8 + 2a = 3

Solving
8 + 2a = 3

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + -8 + 2a = 3 + -8

Combine like terms: 8 + -8 = 0
0 + 2a = 3 + -8
2a = 3 + -8

Combine like terms: 3 + -8 = -5
2a = -5

Divide each side by '2'.
a = -2.5

Simplifying
a = -2.5

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