The problem is: Solve the equation 22x-1 = 8x + 7

and the answers are:

a) -22

b) 22

c) -8

d) 8

The answers I keep getting are 2 or 5

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

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