Question

if 4 x + 3 Y is equal to 39 and 3 x minus 4 Y is equal to 10 then find the value of x and y​

Answer 1

Step-by-step explanation:

Given,

4x + 3y = 39 ..... Equation 1

3x - 4y = 10 ...... Equation 2

Multiply equation 1 by 3,

12x + 9y = 117 .... Equation 3

Multiply equation 2 by 4,

12x - 16y = 40 ..... Equation 4

Subtracting Equation 4 from 3

we get,

25y = 77

y = 77/25

From equation 2,

3x - 4y = 10

3x - 4*77/25

3x = 10 + 318/25

3x = 568/25

x = 568/75

Answer 2

Answer:

mark as brainlist

Step-by-step explanation:

plz follow me