Question

2x - 5y- 4 = 0 and 3x - 8y-5=0​

Answer 1

Answer:

Answer in the attachment

Answer 2

Answer:

x = 7, y = 2

Step-by-step explanation:

2x - 5y - 4 = 0

∴2x - 5y = 4 -----(1) and

3x - 8y - 5 = 0

∴3x - 8y = 5 -----(2)

∴By multiplying equation 1 by 3 and equation 2 by 2 we get,

6x - 15y = 12 ......(From equation 1) -----(3)

6x - 16y = 10.....(From equation 2) -----(4)

∴By subtracting equation 4 from 3 we get,

y = 2.

Then by substituting y = 2 in equation 1 we get,

2x - 5(2) = 4

∴2x - 10 = 4

∴2x = 4 + 10

∴2x = 14

∴x = $\frac{14}{2}$

∴x = 7

∴x=7 and y=2 is the solution of the given simultaneous equations