1. -2x + 8 = 2x + 4
2. 3x + 7 - 2x = 4x + 10
3. 4x + 8 = 3(x - 1) + 12
4. 7x - 2 = 9x + 10

4.

3.

2.

1.

Step-by-step explanation:

4. 7x - 2 = 9x + 10

- 9x + 2 - 9x + 2

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3. 4x + 8 = 3(x - 1) + 12

4x + 8 = 3x - 3 + 12

4x + 8 = 3x + 9

- 4x - 9 - 4x - 9

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2. 3x + 7 - 2x = 4x + 10

x + 7 = 4x + 10

- 4x - 7 - 4x - 7

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1. −2x + 8 = 2x + 4

- 2x - 8 - 2x - 8

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see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

f is the midpoint of