10x+21(x-2)=361

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Solution for 10x+21(x-2)=361 equation:


Simplifying
10x + 21(x + -2) = 361

Reorder the terms:
10x + 21(-2 + x) = 361
10x + (-2 * 21 + x * 21) = 361
10x + (-42 + 21x) = 361

Reorder the terms:
-42 + 10x + 21x = 361

Combine like terms: 10x + 21x = 31x
-42 + 31x = 361

Solving
-42 + 31x = 361

Solving for variable 'x'.

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

Add '42' to each side of the equation.
-42 + 42 + 31x = 361 + 42

Combine like terms: -42 + 42 = 0
0 + 31x = 361 + 42
31x = 361 + 42

Combine like terms: 361 + 42 = 403
31x = 403

Divide each side by '31'.
x = 13

Simplifying
x = 13

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