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Rashid [163]
3 years ago
9

Solve for x: -0.25(-x-12)=2​

Mathematics
1 answer:
AlladinOne [14]3 years ago
5 0
Expand the brackets by multiplying everything in the brackets by -0.25.

-x x -0.25 = 0.25x
-12 x -0.25 = 3

0.25x + 3 = 2

-3 from both sides.

0.25x = -1

Divide both by 0.25

x = -4

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Answer:  a)\quad y=\dfrac{4}{5}x+\dfrac{8}{5}               b)\quad y=\dfrac{1}{3}x+\dfrac{10}{3}                

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Use the Slope formula:      m=\dfrac{y_2-y_1}{x_2-x_1}

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y-4=\dfrac{1}{3}\bigg(x-2\bigg)\\\\\\y-4 =\dfrac{1}{3}x-\dfrac{2}{3}\\\\\\y\quad \ =\dfrac{1}{3}x-\dfrac{2}{3}+\dfrac{12}{3}\\\\\\\large\boxed{y\quad =\dfrac{1}{3}x+\dfrac{10}{3}}

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