Solving exponential equations with a common base

Solve for x using the same base method.
3^x-20 = 27

• 17
• 27
• -7
• 23

Solve: 2^x = 4^x+1

• -2
• 2
• -3
• 3

Solve: 9^8-x = 27^x-3

• x = 5

• x = -5

• x = 1/5

• x = -1/5

Solve for x:
3^2x = 27^{x - 4}

• x = 12
• x = 4
• x = -4
• x = 1

Solve for a:
5^{a + 2} = 1/125

• -1
• -6/7
• -5
• 4

Solve 8 = 2^5x+7

• x = ⅘
• x = ¼
• x = -⅘
• x = -¼

Solve: 2^x = 4^x+1

• x = -2
• x = 2
• x = -3
• x = 3

Solve: 7^-x = 49

• x = 1
• x = -1
• x = 2
• x = -2

Sovle for x:
5^{-3x - 1} = 25

• x = -1
• x = -4
• x = -3
• x = 1

Solve for p:
4^p+2 = 64

• p = -16/9
• p = 1
• p = 8
• p = 7/6