ax+r=7

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Solution for ax+r=7 equation: 


Simplifying
ax + r = 7

Solving
ax + r = 7

Solving for variable 'a'.

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

Add '-1r' to each side of the equation.
ax + r + -1r = 7 + -1r

Combine like terms: r + -1r = 0
ax + 0 = 7 + -1r
ax = 7 + -1r

Divide each side by 'x'.
a = 7x-1 + -1rx-1

Simplifying
a = 7x-1 + -1rx-1

Reorder the terms:
a = -1rx-1 + 7x-1

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