The problem is: Solve the equation 22x1 = 8x + 7 and the answers are: a) 22 b) 22 c) 8 d) 8 The answers I keep getting are 2 or 5 22x  1 = 8x + 7
22x – 1 = 23(x + 7) {get a common base of 2.....8 is 23} 2x  1 = 3(x + 7) {since you have the same base, set exponents equal} 2x  1 = 3x + 21 {distributive property} x =  22 {subtract 2x and subtract 21 from both sides} – Algebra House
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