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Solve this set of equation, using elimination or substitution method.

Solve this set of equation, using elimination or substitution method.-example-1
User Giftcv
by
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2 Answers

6 votes

Answer:

X =224

Y= -10

Explanation:

To solve this question it's better to convert the fractions to decimals this way it will be easy to solve.

0.25x+0.6y= -4

0.2x+0.25y=-0.9

0.2(0.25x+0.6y=-4)

0.25(0.2x+0.25y=-0.9)

0.05x+0.12y=-0.8

0.05x+0.06y=-0.225

0.0575y/0.0575=-0.575/0.0575

Y=-10

To find x you replace the value of y in any of the equations

0.25x+0.6y=-4

0.25x+0.6(-10)=-4

0.25x=-4+60

0.25x/0.25=56/0.25

X=224

I hope this helps and sorry if it's wrong

User EdsonF
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5.3k points
3 votes
Answer of the set is x=-11.2 and y=3
User Simon Heinzle
by
5.9k points