alleryStart learning →Solve: 5(a - 3) + 5 = -10.
Aa=1
Ba=-1
Ca=-2
Da=0
Answer & Solution
Correct answer: D. a=0
1. Distribute on the left: 5(a - 3) becomes 5a - 15.
2. Combine like terms: 5a - 15 + 5 simplifies to 5a - 10.
3. The equation is now 5a - 10 = -10, so 5a = 0 after adding 10 to both sides.
4. Divide both sides by 5 to get a equals 0, and checking confirms 5(0 - 3) + 5 equals -15 + 5 equals -10.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 2 "Solving Linear Equations and Inequalities", section 2.4 Use a General Strategy to Solve Linear Equations_
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