(b+a)m=r

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Solution for (b+a)m=r equation:


Simplifying
(b + a) * m = r

Reorder the terms:
(a + b) * m = r

Reorder the terms for easier multiplication:
m(a + b) = r
(a * m + b * m) = r
(am + bm) = r

Solving
am + bm = r

Solving for variable 'a'.

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

Add '-1bm' to each side of the equation.
am + bm + -1bm = -1bm + r

Combine like terms: bm + -1bm = 0
am + 0 = -1bm + r
am = -1bm + r

Divide each side by 'm'.
a = -1b + m-1r

Simplifying
a = -1b + m-1r

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