[7+3(2-1)]-21=

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Solution for [7+3(2-1)]-21= equation:


Simplifying
[7 + 3(2 + -1)] + -21 = 0

Combine like terms: 2 + -1 = 1
[7 + 3(1)] + -21 = 0

Multiply 3 * 1
[7 + 3] + -21 = 0

Combine like terms: 7 + 3 = 10
[10] + -21 = 0
10 + -21 = 0

Combine like terms: 10 + -21 = -11
-11 = 0

Solving
-11 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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