(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Mathematics

Solve the following simultaneous equations by the substitution method:
2x + y = 8
3y = 3 + 4x

Solve the following simultaneous equations by the substitution method:
x + 3y= 5
7x - 8y = 6

Solve the following simultaneous equations by the substitution method:
5x + 4y - 23 = 0
x + 9 = 6y

Solve the following simultaneous equations by the substitution method:
2x + 3y = 31
5x - 4 = 3y

Solve the following simultaneous equations by the substitution method:
7x - 3y = 31
9x - 5y = 41

Solve the following simultaneous equations by the substitution method:
13 + 2y = 9x
3y = 7x

Solve the following simultaneous equations by the substitution method:
0.5x + 0.7y = 0.74
0.3x + 0.5y = 0.5

Solve the following simultaneous equations by the substitution method:
0.4x + 0.3y = 1.7
0.7x - 0.2y = 0.8

Solve the following simultaneous equations by the substitution method:
3 - (x + 5) = y + 2
2(x + y) = 10 + 2y

Solve the following simultaneous equations by the substitution method:
7(y + 3) - 2(x + 2) = 14
4(y - 2) + 3(x - 3) = 2

Solve the following pairs of equations:

`(6)/(x + y) = (7)/(x - y) + 3`

`(1)/(2(x + y)) = (1)/(3( x - y)`
Where x + y ≠ 0 and x - y ≠ 0

Solve the following equations graphically :
x + 3y = 8
3x = 2 + 2y

Solve the following equations graphically :
2x + 4y = 7
3x + 8y = 10

Solve the following equations graphically :
2x - y = 9
5x + 2y = 27

Solve the following equations graphically :
x + 4y + 9 = 0
3y = 5x - 1

Solve the following equations graphically :
x = 4

`(3x)/(3) - y = 5`

Solve the following equations graphically :
3y = 5 - x
2x = y + 3

Solve the following equations graphically :
x - 2y = 2

`x/(2) - y` = 1

Solve the following equations graphically :
2x - 6y + 10 = 0
3x - 9y + 25 = 0

Solve the following equations graphically :

`2 + (3y)/x = (6)/x`

`(6x)/y - 5 = (4)/y`