Step-by-step explanation:
- 4x+5= 20
- 4x=20-5
- 4x= 15
- x= 15/4
therefore the answer is option
b) X= 15/4
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He is correct but he might be doughting him self
Answer:
x = 4
Step-by-step explanation:

Multiply both sides of the equation by 3
7 + 2x = 15
Subtract 7 from both sides of the equation
2x = 8
Divide both sides of the equation by 2
x = 4
Hope this helps :)
Answer:
13
Step-by-step explanation:
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