6(a-7)+20=4(a-4)

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Solution for 6(a-7)+20=4(a-4) equation:


Simplifying
6(a + -7) + 20 = 4(a + -4)

Reorder the terms:
6(-7 + a) + 20 = 4(a + -4)
(-7 * 6 + a * 6) + 20 = 4(a + -4)
(-42 + 6a) + 20 = 4(a + -4)

Reorder the terms:
-42 + 20 + 6a = 4(a + -4)

Combine like terms: -42 + 20 = -22
-22 + 6a = 4(a + -4)

Reorder the terms:
-22 + 6a = 4(-4 + a)
-22 + 6a = (-4 * 4 + a * 4)
-22 + 6a = (-16 + 4a)

Solving
-22 + 6a = -16 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-22 + 6a + -4a = -16 + 4a + -4a

Combine like terms: 6a + -4a = 2a
-22 + 2a = -16 + 4a + -4a

Combine like terms: 4a + -4a = 0
-22 + 2a = -16 + 0
-22 + 2a = -16

Add '22' to each side of the equation.
-22 + 22 + 2a = -16 + 22

Combine like terms: -22 + 22 = 0
0 + 2a = -16 + 22
2a = -16 + 22

Combine like terms: -16 + 22 = 6
2a = 6

Divide each side by '2'.
a = 3

Simplifying
a = 3

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