7r-i+8r=-2-7r-8

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Solution for 7r-i+8r=-2-7r-8 equation:


Simplifying
7r + -1i + 8r = -2 + -7r + -8

Reorder the terms:
-1i + 7r + 8r = -2 + -7r + -8

Combine like terms: 7r + 8r = 15r
-1i + 15r = -2 + -7r + -8

Reorder the terms:
-1i + 15r = -2 + -8 + -7r

Combine like terms: -2 + -8 = -10
-1i + 15r = -10 + -7r

Solving
-1i + 15r = -10 + -7r

Solving for variable 'i'.

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

Add '-15r' to each side of the equation.
-1i + 15r + -15r = -10 + -7r + -15r

Combine like terms: 15r + -15r = 0
-1i + 0 = -10 + -7r + -15r
-1i = -10 + -7r + -15r

Combine like terms: -7r + -15r = -22r
-1i = -10 + -22r

Divide each side by '-1'.
i = 10 + 22r

Simplifying
i = 10 + 22r

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