4x+3y-4=0 6x=8-5y solve the following simultaneous equation
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Answer:
Determinant method (Cramer's Rule) : In Cramer's method, the equations are written as a1x + bly = c1 & a2x + b2y = c2.
The value of determinant :
D = la1 b1l
la2 b2l
D = a1b2-a2b1
Dx = |c1 b1l
lc2 b2l
Dx = c1b2-c2b1
Dy = la1 c1l
Dy = a1c2-a2c1
We find the value of x & y by using this formula:
x = Dx / D & y = Dy / D
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Step-by-step explanation:
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Given, 4x+3y=4,6x+5y=8
D=
∣
∣
∣
∣
∣
∣
4
6
3
5
∣
∣
∣
∣
∣
∣
=20−18=2
D
x
=
∣
∣
∣
∣
∣
∣
4
8
3
5
∣
∣
∣
∣
∣
∣
=20−24=−4
D
y
=
∣
∣
∣
∣
∣
∣
4
6
4
8
∣
∣
∣
∣
∣
∣
=32−24=8
x=
D
D
x
=
2
−4
=−2
y=
D
D
y
=
2
8
=4
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