17+15+21+12=x

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Solution for 17+15+21+12=x equation:


Simplifying
17 + 15 + 21 + 12 = x

Combine like terms: 17 + 15 = 32
32 + 21 + 12 = x

Combine like terms: 32 + 21 = 53
53 + 12 = x

Combine like terms: 53 + 12 = 65
65 = x

Solving
65 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
65 + -1x = x + -1x

Combine like terms: x + -1x = 0
65 + -1x = 0

Add '-65' to each side of the equation.
65 + -65 + -1x = 0 + -65

Combine like terms: 65 + -65 = 0
0 + -1x = 0 + -65
-1x = 0 + -65

Combine like terms: 0 + -65 = -65
-1x = -65

Divide each side by '-1'.
x = 65

Simplifying
x = 65

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