Question

resolva as equações
a)x+5=12 b) y+9=3 c) x-12=15 d) y+5=4

e)2x=8 f) 3x= -12 g) 3x=10 h) 5x=90

Answer 1

a) x = 12 - 5 = 7
b) y = 3 - 9 = - 6
c) x = 15 + 12 = 27
d) y = 4 - 5 = - 1
e) x = 8/2 = 4
f) x = - 12/3 = - 4
g) x = 10/3 = 3,33...
h) x = 90/5 = 18

Answer 2

a) x= 12-5 b) y= 3-9
x=7 y= -6
c) x= 15-12 d) y= 4-5
x=3 y= -1
e) x= 8/2 f) x= -12/3
x=4 x= -4
g) x= 10/3 h) x=90/5
x= 3.333 x=18