7-15*2=r

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Solution for 7-15*2=r equation:


Simplifying
7 + -15 * 2 = r

Multiply -15 * 2
7 + -30 = r

Combine like terms: 7 + -30 = -23
-23 = r

Solving
-23 = r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-23 + -1r = r + -1r

Combine like terms: r + -1r = 0
-23 + -1r = 0

Add '23' to each side of the equation.
-23 + 23 + -1r = 0 + 23

Combine like terms: -23 + 23 = 0
0 + -1r = 0 + 23
-1r = 0 + 23

Combine like terms: 0 + 23 = 23
-1r = 23

Divide each side by '-1'.
r = -23

Simplifying
r = -23

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