2(a-4)+4=5(9-a)

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Solution for 2(a-4)+4=5(9-a) equation:


Simplifying
2(a + -4) + 4 = 5(9 + -1a)

Reorder the terms:
2(-4 + a) + 4 = 5(9 + -1a)
(-4 * 2 + a * 2) + 4 = 5(9 + -1a)
(-8 + 2a) + 4 = 5(9 + -1a)

Reorder the terms:
-8 + 4 + 2a = 5(9 + -1a)

Combine like terms: -8 + 4 = -4
-4 + 2a = 5(9 + -1a)
-4 + 2a = (9 * 5 + -1a * 5)
-4 + 2a = (45 + -5a)

Solving
-4 + 2a = 45 + -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
-4 + 2a + 5a = 45 + -5a + 5a

Combine like terms: 2a + 5a = 7a
-4 + 7a = 45 + -5a + 5a

Combine like terms: -5a + 5a = 0
-4 + 7a = 45 + 0
-4 + 7a = 45

Add '4' to each side of the equation.
-4 + 4 + 7a = 45 + 4

Combine like terms: -4 + 4 = 0
0 + 7a = 45 + 4
7a = 45 + 4

Combine like terms: 45 + 4 = 49
7a = 49

Divide each side by '7'.
a = 7

Simplifying
a = 7

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