6x-3x=-10 3x+5y-8=0 by cramer's
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Answer:
x = -(2/3) and y = 2
Step-by-step explanation:
6x-3x = -10 ...(1)
3x+5y-8 = 0
∴3x+5y = 8 ...(2)
For equation (1), a1 = 6, b1 = -3, c1 = -10 and for equation (2), a2 = 3, b2 = 5, c2 = 8
D =6×5-(-3)×3
= 30+9 = 39
Dx = (-10) ×5-(-3) ×8
= -50+24 = -26
Dy = 6×8-(-10) ×3
= 48+30=78
By Cramer's rule,
x = Dx/D
= -26/39
= (-2/3)
y = Dy/D
= 78/39
= 2
∴ x = -(2/3) and y = 2 is the solution if the given simultaneous equation.
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