5(a-1)+4(a-1)=

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Solution for 5(a-1)+4(a-1)= equation:


Simplifying
5(a + -1) + 4(a + -1) = 0

Reorder the terms:
5(-1 + a) + 4(a + -1) = 0
(-1 * 5 + a * 5) + 4(a + -1) = 0
(-5 + 5a) + 4(a + -1) = 0

Reorder the terms:
-5 + 5a + 4(-1 + a) = 0
-5 + 5a + (-1 * 4 + a * 4) = 0
-5 + 5a + (-4 + 4a) = 0

Reorder the terms:
-5 + -4 + 5a + 4a = 0

Combine like terms: -5 + -4 = -9
-9 + 5a + 4a = 0

Combine like terms: 5a + 4a = 9a
-9 + 9a = 0

Solving
-9 + 9a = 0

Solving for variable 'a'.

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

Add '9' to each side of the equation.
-9 + 9 + 9a = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 9a = 0 + 9
9a = 0 + 9

Combine like terms: 0 + 9 = 9
9a = 9

Divide each side by '9'.
a = 1

Simplifying
a = 1

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