Question

1-determine o resultado das equações abaixo:
a) x+3=7
b) x-4=6
c) 2x-6 = +x
d)2x-8 = -4 + x
e)4 - 3x = 4x + 6

Answer 1

a)
x+3 = 7
x = 7-3
X = 4

b)
x-4 = 6
x = 6+4
X = 10

c)
2x-6 = +x
2x-x = 6
X = 6

d)
2x-8 = -4+x
2x-x = -4+8
X = 4

e)
4-3x = 4x+6
-3x-4x = 6-4
-7x = 2 ×(-1)
7x = -2
X = -2⁄7

Answer 2

a)x=7-3
b)x=6+4
c)2x-x=6
d)2x-x=-4+8
e)-3x-4x=6-4
-7x=2

a)x=4
b)x=10
c)x=6
d)x=4
e)x=2/-7