Question

2x + y - 35 = 0,3x + 4y - 65 = 0 substitutions method​

Answer 1

Answer:

x=15 and y=5

Step-by-step explanation:

2x+y-35=0

2x+y=35

y=35-2x

let's substitute the value of y in following equation,

3x+4y-65=0

3x+4(35-2x)-65=0

3x+140-8x-65=0

-5x+75=0

5x=75

x=75/5

x=15

let's substitute the value of x in following equation

y=35-2x

y=35-2(15)

y=35-30

y=5

mark this answer as brainlist answer.....

Answer 2

Step-by-step explanation:

2x+y-35=0 (1)

y=35-2x (3)

3x+4y-65=0(2)

sub 3 in 2

3x+4(35-2x)-65=0

3x+140-8x-65=0

-5x+75=0

75=5x

x=15

sub x=15 in 3

y=35-2x

y=35-2×15

y=35-30

y=5