Question

Solve the following linear equation graphically 3x+4y=10and4x-3y=5

Answer 1

Step-by-step explanation:

3x + 4y =10 ........(1)

4x - 3y = 5 ..........(2)

4×(3x+4y=10)

3×(4x-3y=5)

12x+16y=40

12x-9y= 15

_ + _

Answer 2

Answer:

Step-by-step explanation:

3x=10-4y

x=(10-4y)÷3

substituting for X in 2nd eqn

4(10-4y)÷3-3y=5

40-16y-9y=15

25y=25

y=5

substitute for y in eqn 2

4x-3*5=5

4x=5+15

x =5