Nom : Professeur : Date : Resultat :

Nom :
Resultat :
Professeur :
Date :
Feuille 35
1 ) 2x + 4y = 0
y = -8x
2 ) 7x - 4y = -7
5x + y = 22
3 ) x + 7y = 24
x - 9y = -24
Solving Systems of Equations by Substitution
6 ) y = 1_3 x - 4
y = - 7_3 x + 4
__
7 ) y = - 13
x+7
4
y = - 3_4 x - 9
8 ) y = 4_5 x - 3
y = -7
4 ) y = - 3_4 x + 4
9 ) 7x - 5y = -24
y = - 1_2 x - 1
-9x + 5y = 18
5 ) y = 6x - 14
y = -8x
10 ) 6x + 4y = 6
3x = -15
Math-Aids.Com
Nom :
Resultat :
Professeur :
Date :
Solving Systems of Equations by Substitution
1 ) 2x + 4y = 0
6 ) y = 1_3 x - 4
y = -8x
y = - 7_3 x + 4
(0,0)
(3,-3)
2 ) 7x - 4y = -7
__
7 ) y = - 13
x+7
4
5x + y = 22
y = - 3_4 x - 9
(3,7)
(4,-61) (6,4 -13,8)
3 ) x + 7y = 24
8 ) y = 4_5 x - 3
x - 9y = -24
y = -7
(3,3)
(-5,-7)
4 ) y = - 3_4 x + 4
9 ) 7x - 5y = -24
y = - 1_2 x - 1
-9x + 5y = 18
(4,1)
(3,9)
(20,-11)
5 ) y = 6x - 14
10 ) 6x + 4y = 6
y = -8x
3x = -15
(1,-8)
(-5,9)
Math-Aids.Com