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3 years ago

Solve the system by substitution. -4.5-2y=-12.5 , 3.35x-y=-0.75

2 answers:

6 0

First, we solve for y in the first equation:
$-2y = -12.5 +4.5$
$-2y=-8$
$y= \frac{8}{2}$
$y=4$
Then, we substitute the y value in the other equation and solve for x:
$3.35x-(4)=-0.75$
$3.35x=-0.75+4$
$3.35x=3.25$
$x= \frac{3.25}{3.35}$
$x= \frac{65}{67}$

krok68 [10]3 years ago

5 0

so -2y=-12.5+4.5 thus -2y=-8 thus y=4 if y=4 than 3.35x=-.75+4 thus 3.35x=3.25 thus x=3.35/3.25

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Step-by-step explanation:

NOTE: I assume the unusable length s 11,5 and less

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Answer:

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