allerySolving ax + b = c for x gives
Ax = (c + b) / a
Bx = c - b - a
Cx = a(c - b)
Dx = (c - b) / a
Answer & Solution
Correct answer: D. x = (c - b) / a
1. Subtract b from both sides to get ax = c - b.
2. Divide both sides by a to get x = (c - b) / a.
3. Adding b instead of subtracting it gives the wrong sign.
_Source: Wikipedia, Elementary algebra, Linear equations with one variable_
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