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goldenfox [79]
3 years ago
15

Use substitution to solve the system of equations :

Mathematics
1 answer:
mote1985 [20]3 years ago
3 0

Answer:

x=1

y=-4

Step-by-step explanation:

4x+y=0  ->    y= -4x

2(-4x)+x=-7

-8x+  x=-7

-7x=-7

x=-7/-7=1

y=-4 . 1 = -4

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4. -7 = 3k - 3-7<br> this one to please lol
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Answer:

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Step-by-step explanation:

4. -7 = 3k - 3-7

Combine like terms

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Add 10 to each side

-3+10 = 3k-10+10

7 = 3k

Divide each side by 3

7/3 = 3k/3

7/3 =k

4 0
3 years ago
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I believe you line the decimals up, the biggest number goes on top and the smallest on bottom .
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I WILL GIVE BRAINLIEST IF YOU FIGURE IT OUT
Likurg_2 [28]
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