A+3+8-21=67

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Solution for A+3+8-21=67 equation:


Simplifying
A + 3 + 8 + -21 = 67

Reorder the terms:
3 + 8 + -21 + A = 67

Combine like terms: 3 + 8 = 11
11 + -21 + A = 67

Combine like terms: 11 + -21 = -10
-10 + A = 67

Solving
-10 + A = 67

Solving for variable 'A'.

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

Add '10' to each side of the equation.
-10 + 10 + A = 67 + 10

Combine like terms: -10 + 10 = 0
0 + A = 67 + 10
A = 67 + 10

Combine like terms: 67 + 10 = 77
A = 77

Simplifying
A = 77

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