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25 votes
25 votes
Hello can you please explain to me how you do this

Hello can you please explain to me how you do this-example-1
User Fathy
by
3.2k points

1 Answer

27 votes
27 votes
Answer:

1) 2x = x + 3 x = 3 Check: 6 = 6

2) 3x = x + 4 x = 2 Check: 6 = 6

3) x + 4 = 2x + 3 x = 1 Check: 5 = 5

4) 4x = 2x + 6 x = 3 Check: 12 = 12

Explanations:

2) 3x = x + 4

Collect like terms

3x - x = 4

2x = 4

Divide both sides by 2

2x/2 = 4/2

x = 2

Check: 3(2) = 2 + 4

6 = 6

3) x + 4 = 2x + 3

Collect like terms

2x - x = 4 - 3

x = 1

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

5 = 5

4) 4x = 2x + 6

Collect like terms

4x - 2x = 6

2x = 6

2x/2 = 6/2

x = 3

Check: 4(3) = 2(3) + 6

12 = 6 + 6

12 = 12

User Rahul Borkar
by
3.1k points