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Mathematics
, 28.01.2020 04:31
573589
Could someone me with these systems. i have to use substitution.
-7x+2y=18
6x+6y=0
show your steps so i can learn too. you.
Answers: 1
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Answer from:
nooope
Isolate one term (x or y) in one of the equations
6x+6y=0
6x=-6y
X= -1y
Substitute x=-y into the other equation
-7(-y) + 2y =18
7y + 2y =18
9y=18
Y=2
Substitute y=2 into 6x+6y=0
6x + 6(2) = 0
6x + 12=0
6x= -12
X = -2
Answer from: Quest
i think c. but don't trust it.
step-by-step explanation:
Answer from: Quest
the answer will be the last one
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Could someone me with these systems. i have to use substitution.
-7x+2y=18
6x+6y=0
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