Home › NY Regents Algebra I › Mathematics › Solving Linear Equations and Inequalities › Solve: 5y - 9 = 8y.
Solve: 5y - 9 = 8y.
Ay=3
By=-1
Cy=-3
Dy=1
Answer & Solution
Correct answer: C. y=-3
1. Leave the constant on the left and move the variable terms to the right by subtracting 5y from both sides.
2. -9 equals 3y after subtracting 5y from both sides.
3. Divide both sides by 3 to get y equals -3.
4. Check: 5 times -3, minus 9, equals -24, and 8 times -3 also equals -24.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 2 "Solving Linear Equations and Inequalities", section 2.3 Solve Equations with Variables and Constants on Both Sides_
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