Solve the equation graphically 2x-y=2and 4x-y=4
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The solution for the system of equations is:
x=1
y=0
Explanation:
−2x−y=−2, multiplying the equation by 2
−4x−2y=−4.......equation (1)
4x+y=4....................equation (2)
Solving by elimination:
Adding equations 1 and 2 in order to eliminate 4x:
−4x−2y=−4
4x+y=4
−y=0
y=0
Finding x by substituting the value of y into equation 1:
−2x−y=−2
−2x−0=−2
−2x=−2
x=−2−2
x=1
x=1
y=0
Explanation:
−2x−y=−2, multiplying the equation by 2
−4x−2y=−4.......equation (1)
4x+y=4....................equation (2)
Solving by elimination:
Adding equations 1 and 2 in order to eliminate 4x:
−4x−2y=−4
4x+y=4
−y=0
y=0
Finding x by substituting the value of y into equation 1:
−2x−y=−2
−2x−0=−2
−2x=−2
x=−2−2
x=1
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