SAT Math · Linear equations in one variable · medium
What is the value of x if (4x-3)/(7) + 2 = 9?
What is the value of if ?
Answer and explanation
Answer: D: 13
Undo the operations in reverse order. Subtract 2 from both sides of : . Multiply by 7: . Add 3: . Divide by 4: , choice D. Check: . Choice A (11) gives . Choice B (15) gives . Choice C (9) gives . None satisfies the equation, so back-substitution quickly rules them out.
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