solve the pair of equations by substitution method 7x-15y=2. nd x+2y=3
Answers
Answered by
103
x=3-2y
replace in eq 1
7(3-2y) -15y=2
21-14y-15y=2
y=19/29
replace in eq 1
7(3-2y) -15y=2
21-14y-15y=2
y=19/29
Divesh2409200:
pls mark brainliest ans
Answered by
197
7x - 15y = 2 ....eq 1
x + 2y = 3 .....eq2
Multiply eq 2 by 7 and subtract them
-15y - 14y = 2-21
-29y = -19
y = 19/29
Putting value of y in eq 2
x + 2*19/29 = 3
x = 3- 38/29
x= 87/29-38/29
x = 49/29
@Abhinav
x + 2y = 3 .....eq2
Multiply eq 2 by 7 and subtract them
-15y - 14y = 2-21
-29y = -19
y = 19/29
Putting value of y in eq 2
x + 2*19/29 = 3
x = 3- 38/29
x= 87/29-38/29
x = 49/29
@Abhinav
i hope my answer is easy to understand and complete
yaa tq
Similar questions