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Rainbow [258]
3 years ago
7

What is the solution of 7x + 14 - 3x = 30? O A. 4 o B. -11

Mathematics
2 answers:
max2010maxim [7]3 years ago
7 0
X = 4

7(4)+14-3(4)=30

7(-11)+14-3(-11)=-30

So, 4 is the answer because when substituted for X, it gives you 30.
stepan [7]3 years ago
5 0

Answer:

A=4

Step-by-step explanation:

7x+14-3x=30

collect the like terms 7x-3x=4x than

it's gonna be 4x+14=30 and move constant to the right side and change its sign 4x=30-14 and subtract 30-14=16

4x=16 and divide both sides of the equation by 4

it's gonna be x=4

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