Question

Find the value of x
(-2)x+1 * (-2)3 =(-2)7
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Answer 1

Answer:

Answer is 3

Step-by-step explanation:

(-2)x+1×(-2)3=(-2)7

(-2)x+1=(-2)7/(-2)3

(-2)x+1=(-2)4

(-2)x=(-2)4

x=(-2)4/(-2)

x=4-1

x=3

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Answer 2

Answer:

• x = 2/3

Step-by-step explanation:

• (-2)x + 1 *(-2)3 = (-2)7
• -2x + 1* -6 = -14
• -2x+1 = -14/-6
• -2x + 1 = 7/3
• -2x =7/3-1
• -2x = 7-3/3
• -2x = 4/3
• -x = 4/3*2
• -x = 2/3
• So, x = -2/3