When an equation uses addition, the variable can be solved by the opposite process: subtraction.

Name: When an equation uses addition, the variable can be solved by the opposite process: subtraction.
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Quizplus · Accepted Answer

This is true according to the principle of balancing equations. Whatever is done to one side of the equation must also be done to the other side to maintain balance. So, if addition is done to one side, subtraction must be done to maintain balance and solve for the variable.

When an Equation Uses Addition, the Variable Can Be Solved