solve the following pairs of equations by cross multiplication method 4 x + 6 Y = 11, 5 x - 8 Y = 6
sohaib4:
mark me as brainliest.
Answers
Answered by
2
4x+6y/5x-8y=11/6
6(4x+6y)=11(5x-8y)
24x+36y=55x-88y
24x-55x=-88y-36y
-31x=-124y
31/124=y/x
6(4x+6y)=11(5x-8y)
24x+36y=55x-88y
24x-55x=-88y-36y
-31x=-124y
31/124=y/x
Answered by
2
4x+6y=11 ..................(1)
5x-8y=6 ...................(2)
multiple 5 to (1)
and 4 to (2)
now the equation will
20x+30y=55..............(3)
20x-32y=24...............(4)
20x+30y=55
20x-32y= 25
..........................
-2y=-30
y= -30/-2
y= 15.
5x-8y=6 ...................(2)
multiple 5 to (1)
and 4 to (2)
now the equation will
20x+30y=55..............(3)
20x-32y=24...............(4)
20x+30y=55
20x-32y= 25
..........................
-2y=-30
y= -30/-2
y= 15.
Similar questions