Question

If 10y=7x-4 and 12x+18y=1 ;find the values of 4x+6y and 8y-x. Anyone plz

Answer 1

Hey dear here is your answer .....

We can solve these eq. by elimination or substitution or cross multiplication method ...

Here I will use elimination method :-

7x-10y=4...eq(1)
12x+18y=1...eq(2)

Multiply eq.1 by 18
Multiply eq.2 by 10

126x-180y=72....eq(3)
120x+180y=10......eq(4)

add eq.(3)&(4)

246x=82
x=3

y=17/10

To find the value of 4x+6y

substitute value of x and y

12+10.2
22.2

To find the value of 8y-x

13.6+3
16.6

hope it helps u!!

Answer 2

Step-by-step explanation:

this is the answer hope it helps