Question

7x - 15 = 2
x - 2y = 3
by sustitution
method​

Answer 1

Step-by-step explanation:

7x- 15=2

7x=15+2

7x=17

X=17/7

X=2.42....

Answer 2

Answer:

given,

7x-15=2

7x=2+15

7x=17

x=17/7

as we know the value of x is 17/7 apply it here

17/7-2y = 3

-2y=3-17/7

take LCM to equal the denominator in RHS

so u get

3/1*7/7=21/7

17/7*1/1=17/7

-2y=21/7-17/7

-2y=4/7

y=4/7÷(-2)

= -2/7

Step-by-step explanation:

hope this helps