Question

3x - 4 y = 10
& 4x +3y = 4 find the value
of x + y​

Answer 1

Answer:

x= - 46

y=- 37

Step-by-step explanation:

3x-4y=10 1

4x-3y=4. 2

epu 1 multyply by 3

9x-12y=30. equ 3

equ2 multyply by 4

16x+12y=16. equ 4

equ 3 + equ 4

9x-12y=30

16x+12y=16

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-1x. =46

x=-46

x= - 46 put in equ 1

3x-4y=10

3*-46-4y=10

- 138-4y=10

-4y=10+138

-4y=148

y=148/-4

y=- 37