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Malapotekeithleengo
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1. 2x + 4 = 8
2. 2x -5 = 4x + 5
3.3 (x+2) = 2 (2x + 1).
C. Find the solution for every mathemaiical sentence below. Write your solution on a separate​

Sagot :

Keilah01go

Answer:

1.) 2x + 4 = 8

2x = 8 - 4

2x = 4

2x/2 = 4/2

x = 2

Check:

2x + 4 = 8

2(2) + 4 = 8

4 + 4 = 8

8 = 8

2.) 2x - 5 = 4x + 5

2x- 4x = 5 + 5

-2x = 10

-2x/-2 = 10/-2

x = -5

Check:

2x - 5 = 4x + 5

2(-5) - 5 = 4(-5) + 5

-10 - 5 = -20 + 5

-15 = -15

3.) 3 (x + 2) = 2 (2x + 1)

3x + 6 = 4x + 2

3x - 4x = 2 - 6

- 1x = -4

-1x/-1 = -4/-1

x = 4

Check:

3(x + 2) = 2 (2x + 1)

3 (4 + 2) = 2 (2(4) + 1)

3 (6) = 2 (9)

18 = 18

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