X+y=-1
3x-y=21
add them equations
x+y=-1
<u>3x-y=21 +</u>
4x+0y=20
4x=20
divide by 4
x=5
x+y=-1
5+y=-1
minus 5 both sides
y=-6
(x,y)
(5,-6)
D is answer
Answer:
Vince is driving faster than Brian?
Step-by-step explanation:
what are the option?
Step-by-step explanation:
(5+3)*2-6)
8*2-6
16-6 10
idk if it is solved this way but i tried
Answer:
C.transaction
Step-by-step explanation:
Answer:
B and C
Step-by-step explanation:
A. y + 11 = 22 → subtract 11 from both sides:
y = 11
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B. 8 = 18 - y → subtract 18 from both sides:
-10 = -y → divide both sides by -1:
10 = y
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C. 60 = 6y → divide both sides by 6:
10 = y
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D. = 4 → multiply both sides by 5:
y = 20
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E. 10y = 20 → divide both sides by 10:
y = 2