7(a-8)+18=4(a-5)

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Solution for 7(a-8)+18=4(a-5) equation:


Simplifying
7(a + -8) + 18 = 4(a + -5)

Reorder the terms:
7(-8 + a) + 18 = 4(a + -5)
(-8 * 7 + a * 7) + 18 = 4(a + -5)
(-56 + 7a) + 18 = 4(a + -5)

Reorder the terms:
-56 + 18 + 7a = 4(a + -5)

Combine like terms: -56 + 18 = -38
-38 + 7a = 4(a + -5)

Reorder the terms:
-38 + 7a = 4(-5 + a)
-38 + 7a = (-5 * 4 + a * 4)
-38 + 7a = (-20 + 4a)

Solving
-38 + 7a = -20 + 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.
-38 + 7a + -4a = -20 + 4a + -4a

Combine like terms: 7a + -4a = 3a
-38 + 3a = -20 + 4a + -4a

Combine like terms: 4a + -4a = 0
-38 + 3a = -20 + 0
-38 + 3a = -20

Add '38' to each side of the equation.
-38 + 38 + 3a = -20 + 38

Combine like terms: -38 + 38 = 0
0 + 3a = -20 + 38
3a = -20 + 38

Combine like terms: -20 + 38 = 18
3a = 18

Divide each side by '3'.
a = 6

Simplifying
a = 6

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