10a+5=4(a-1)+15

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Solution for 10a+5=4(a-1)+15 equation:


Simplifying
10a + 5 = 4(a + -1) + 15

Reorder the terms:
5 + 10a = 4(a + -1) + 15

Reorder the terms:
5 + 10a = 4(-1 + a) + 15
5 + 10a = (-1 * 4 + a * 4) + 15
5 + 10a = (-4 + 4a) + 15

Reorder the terms:
5 + 10a = -4 + 15 + 4a

Combine like terms: -4 + 15 = 11
5 + 10a = 11 + 4a

Solving
5 + 10a = 11 + 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.
5 + 10a + -4a = 11 + 4a + -4a

Combine like terms: 10a + -4a = 6a
5 + 6a = 11 + 4a + -4a

Combine like terms: 4a + -4a = 0
5 + 6a = 11 + 0
5 + 6a = 11

Add '-5' to each side of the equation.
5 + -5 + 6a = 11 + -5

Combine like terms: 5 + -5 = 0
0 + 6a = 11 + -5
6a = 11 + -5

Combine like terms: 11 + -5 = 6
6a = 6

Divide each side by '6'.
a = 1

Simplifying
a = 1

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