Question

The equation 2x + 2 = x+5 is modeled below. x What value of x makes the equation true? A X = 1 B Y = 3 C x = 5 D X = 7

Answer 1

b

Explanation:

2x + 2 = 1x + 5

combine the like terms.

2x + 2 = 1x + 5

-2x -2x

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2 = -1x + 5

isolate the -1x.

2 = -1x + 5

-5 -5

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-3 = -1x

solve for x.

-3/-1 = -1x/-1

3 = x

so b. correct me if any of this is wrong.

Answer 2

B Y = 3

2 x + 2 - x = 5
2 x - x = 5 - 2
x = 5 - 2
x = 3