EQUATIONS a. x+5=12 b. x+ 8 = 3 c. x-7 =5 d. x- 2 = 9 e. 5y=35 f. 4y=32 g. -3y=36 h. -7y=-63
Mathématiques
lulembem
Question
EQUATIONS
a.x+5=12 b.x+ 8 = 3 c.x-7 =5 d.x- 2 = 9 e.5y=35 f.4y=32 g.-3y=36 h.-7y=-63
a.x+5=12 b.x+ 8 = 3 c.x-7 =5 d.x- 2 = 9 e.5y=35 f.4y=32 g.-3y=36 h.-7y=-63
1 Réponse
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1. Réponse CamPan
a) x+5 = 12
x = 12 -5
x = 7
b) x+8 = 3
x = 3-8
x = -5
c) x-7 = 5
x = 5+7
x = 12
d) x-2 = 9
x = 9+2
x = 11
e) 5y = 35
y = 35/5
y = 7
f) 4y = 32
y = 32/4
y = 8
g) -3y = 36
y = 36/(-3)
y = -12
h) -7y = -63
y = -63/(-7)
y = 9.