-10=(a-1)+(a-3)

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Solution for -10=(a-1)+(a-3) equation:


Simplifying
-10 = (a + -1) + (a + -3)

Reorder the terms:
-10 = (-1 + a) + (a + -3)

Remove parenthesis around (-1 + a)
-10 = -1 + a + (a + -3)

Reorder the terms:
-10 = -1 + a + (-3 + a)

Remove parenthesis around (-3 + a)
-10 = -1 + a + -3 + a

Reorder the terms:
-10 = -1 + -3 + a + a

Combine like terms: -1 + -3 = -4
-10 = -4 + a + a

Combine like terms: a + a = 2a
-10 = -4 + 2a

Solving
-10 = -4 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
-10 + -2a = -4 + 2a + -2a

Combine like terms: 2a + -2a = 0
-10 + -2a = -4 + 0
-10 + -2a = -4

Add '10' to each side of the equation.
-10 + 10 + -2a = -4 + 10

Combine like terms: -10 + 10 = 0
0 + -2a = -4 + 10
-2a = -4 + 10

Combine like terms: -4 + 10 = 6
-2a = 6

Divide each side by '-2'.
a = -3

Simplifying
a = -3

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