3797654
Answered

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can someone please answer these and explain how you did it


2x - 7 = 11

7x + 1 = 22

3x - 8 = 22

8x +5 = 45

Sagot :

2x-7 = 11

7 goes to the other side

2x=11+7

2x = 18

x=18/2

x=9

7x + 1 = 22

1 goes to the other side

7x=22 - 1

7x=21

x=3

3x - 8 = 22

8 goes to the other side

3x = 22+8

3x=30

x=10

8x+5 = 45

5 goes to the other side

8x=40

x=40/8

x=5

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