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swifty125
25.02.2021 •
Mathematics
Solve the systems of equations:
y=-3x+4
y=4x-10
Solved
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Ответ:
x = 2
y = -2
(2,-2) in point form
Ответ:
x=2 and y=-2
Step-by-step explanation:
y+3x= 4(1)
y-4x= -10(2)
Subtract equation 2 from 1
y+3x= 4
-y-4x= -10
0+7x = 14
7x = 14
divide both sides by 7
7x = 14
7 7
x = 2
Substitute x=2 into equation 1
y = -3x + 4
y = -3(2) + 4
y = -6 + 4
y = -2
x = 2 and y = -2
Ответ:
b is the answer
b
Step-by-step explanation: