Solve the following simultaneous equation.
1) 3x - y = 2 ; 5x - 2y = 1.
2) 47x + 31y = 63 ; 31x + 47y = 15.
3)3a + 5b = 26 ; a + 5b = 15.
4)4m + 3n = 18 ; 3m - 2n = 5.
5)1/3 + 5y = 13 ; 2x + 1/2y = 19.
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Step-by-step explanation:
3x-y=2. . . . . (Eq:1)
5x-2y=1. . . . .(Eq2)
from eq:1 we get the value of y:
3x-y=2
y=2-3x
Now substitute the value of y in eq2:
5x-2y=1
5x-2(2-3x)=1
5x-4+6x=1
11x-4=1
11x=1+4
11x=5
x=5/11
put the value of x in eq1:
3x-y=2
3(5/11)-y=2
15/11-y=2
1.36-y=3
y=3-1.36
y=1.64
HOPE THIS WAS HELP YOU!
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