4(a-4)=5(a-3)

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


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

Reorder the terms:
4(-4 + a) = 5(a + -3)
(-4 * 4 + a * 4) = 5(a + -3)
(-16 + 4a) = 5(a + -3)

Reorder the terms:
-16 + 4a = 5(-3 + a)
-16 + 4a = (-3 * 5 + a * 5)
-16 + 4a = (-15 + 5a)

Solving
-16 + 4a = -15 + 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.
-16 + 4a + -5a = -15 + 5a + -5a

Combine like terms: 4a + -5a = -1a
-16 + -1a = -15 + 5a + -5a

Combine like terms: 5a + -5a = 0
-16 + -1a = -15 + 0
-16 + -1a = -15

Add '16' to each side of the equation.
-16 + 16 + -1a = -15 + 16

Combine like terms: -16 + 16 = 0
0 + -1a = -15 + 16
-1a = -15 + 16

Combine like terms: -15 + 16 = 1
-1a = 1

Divide each side by '-1'.
a = -1

Simplifying
a = -1

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