10+a-b=15

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Solution for 10+a-b=15 equation:


Simplifying
10 + a + -1b = 15

Solving
10 + a + -1b = 15

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + a + -10 + -1b = 15 + -10

Reorder the terms:
10 + -10 + a + -1b = 15 + -10

Combine like terms: 10 + -10 = 0
0 + a + -1b = 15 + -10
a + -1b = 15 + -10

Combine like terms: 15 + -10 = 5
a + -1b = 5

Add 'b' to each side of the equation.
a + -1b + b = 5 + b

Combine like terms: -1b + b = 0
a + 0 = 5 + b
a = 5 + b

Simplifying
a = 5 + b

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