Scelta multipla
Which of the following is a linear equation in one variable?
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3. Solving Equations and Problem Solving
Introduction to Solving Equations
Scelta multipla
Solve the given linear equation using addition and subtraction properties of equality.
A
B
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D
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Start with the given equation: \(x - (-5) = 12\).
Recall that subtracting a negative number is the same as adding its positive counterpart, so rewrite the equation as: \(x + 5 = 12\).
To isolate \(x\), use the subtraction property of equality by subtracting 5 from both sides: \(x + 5 - 5 = 12 - 5\).
Simplify both sides: \(x = 12 - 5\).
The equation is now solved for \(x\), and you can find the value by performing the subtraction on the right side.
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