a-240+-1b+215-1b=455

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Solution for a-240+-1b+215-1b=455 equation:


Simplifying
a + -240 + -1b + 215 + -1b = 455

Reorder the terms:
-240 + 215 + a + -1b + -1b = 455

Combine like terms: -240 + 215 = -25
-25 + a + -1b + -1b = 455

Combine like terms: -1b + -1b = -2b
-25 + a + -2b = 455

Solving
-25 + a + -2b = 455

Solving for variable 'a'.

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

Add '25' to each side of the equation.
-25 + a + 25 + -2b = 455 + 25

Reorder the terms:
-25 + 25 + a + -2b = 455 + 25

Combine like terms: -25 + 25 = 0
0 + a + -2b = 455 + 25
a + -2b = 455 + 25

Combine like terms: 455 + 25 = 480
a + -2b = 480

Add '2b' to each side of the equation.
a + -2b + 2b = 480 + 2b

Combine like terms: -2b + 2b = 0
a + 0 = 480 + 2b
a = 480 + 2b

Simplifying
a = 480 + 2b

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