3x+2y=14 , -x+4y=7 wilopan widhi
Cuteeanu:
What should we do here
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hi ,
Given
3x+2y=14
-x+4y=7
multiply 2nd equation with 3
-3x + 12y = 21
add above equation to 1st equation
(3x+2y) + (-3x+12y) = 14+21
14y = 35
y = 5/2
so
-x+4y=7
-x + 4*5/2 = 7
x = 10-7
x = 3
Hope it helped
Given
3x+2y=14
-x+4y=7
multiply 2nd equation with 3
-3x + 12y = 21
add above equation to 1st equation
(3x+2y) + (-3x+12y) = 14+21
14y = 35
y = 5/2
so
-x+4y=7
-x + 4*5/2 = 7
x = 10-7
x = 3
Hope it helped
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