X + 6y = 27
- x - 9y = - 39
2 answers:
Answer:
y=4 and x=3
Step-by-step explanation:
x + 6y = 27
-x - 9y = -39
multiply the equations with (+) to get
1st... x +(-x)
2nd..... 6y +(-9y)
3rd.... 27 +(-39)
•0 - 3y = -12
y = 4...
substitute (y=4) in eqn(i)
x + 6(x) = 27
x + 24 =27
x = 27 - 24
x = 3...
ANSWER :
x = 3 , y = 4
Step-by-step explanation:
x + 6y = 27 -x -9y = -39
x+6y+27
x= -6 + 27
- ( -6y + 27) _9y = -39
6y - 27 - 9y = -39
3y - 27 = -39
-3y = -12
y = 4
FOR x
x= -6 x 4 + 27
x= -24 + 27
x = 3
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