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Neporo4naja [7]
4 years ago
9

Given the equation y=1/2x-2 , determine the value for x when y = 8

Mathematics
1 answer:
marissa [1.9K]4 years ago
3 0

Answer:

x=20

Step-by-step explanation:

we have

y=\frac{1}{2}x-2

This is a linear equation (equation of a line)

To determine the value of x when the value of y=8, substitute the value of y in the equation and solve for x

so

For y=8

substitute

8=\frac{1}{2}x-2

isolate the variable x

Adds 2 both sides

8+2=\frac{1}{2}x-2+2

10=\frac{1}{2}x

Multiply by 2 both sides

10*2=(2)\frac{1}{2}x

Rewrite

x=20

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