a+x+8=r

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Solution for a+x+8=r equation:


Simplifying
a + x + 8 = r

Reorder the terms:
8 + a + x = r

Solving
8 + a + x = r

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + a + -8 + x = -8 + r

Reorder the terms:
8 + -8 + a + x = -8 + r

Combine like terms: 8 + -8 = 0
0 + a + x = -8 + r
a + x = -8 + r

Add '-1x' to each side of the equation.
a + x + -1x = -8 + r + -1x

Combine like terms: x + -1x = 0
a + 0 = -8 + r + -1x
a = -8 + r + -1x

Simplifying
a = -8 + r + -1x

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