Question

Solve the following system of equations
algebraically. class 10th chapter 3
x/10 + y/5+1=15
x/8+y/6=15​

Answer 1

value of x=80 and the value of y=30..mark it as brainliest

Answer 2

x/10 + y/5 + 1 = 15

x/10 + y/5 + 1 - 15 = 0

x/10 + y/5 - 14 = 0

= 10 (x/10 + y/5 - 14 )

= x + 2y - 140

x + 2y = 140 •••••••••••••••••••(1)

x/8 + y/6 = 15

24 (x/8 + y/6 = 15 )

3x + 4y = 360•••••••••••••••••••(2)

(1) * 3

3x - 6y = 420 •••••••••••••••••(3)

(2) - (3)

3x - 6y = 420

3x + 4y = 360

(-) (-) (-)

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

-10y = 60

y =60/-10

y = -6

put y in (1)

x - 12 = 140

x = 140 +12

x = 152