Question

pls solve all and give me plss ans do brainleast lo​

Answer 1

Answer:

3x+5x=12, 5x+3y=4

solution

add both equations

3x+5y=12

5x+3y=4

--------------

8x+8y=16---divide by 8

x+y=2-- mark it eq (1)

subtract previous eq

3x+5y=12

-5x-3y= -4

--------------

-2x+2y=8--- divide by2

-x+y =4. -- mark it eq (2)

add 1 and 2 eq

x+y=2

-x+y=4

-----------

2y= 6

y=6/2 divide

y= 3

substitute in 1eq

x+y=2

x+3=2

x=2-3

x=-1

therefore x=-1 and y=3