Question

Resolva as equações:
a) X+2= 10
b) X-6= -8
c) 3X-21= 0
d) 6+X= 6,4
e) 4X+3= -19
f) 5X+2=2X-1
g) 6-3X=-10-4X

Answer 1

Resposta:

a) X+2= 10

x = 10 - 2

x = 8

b) X-6= -8

x = -8 +6

x = -2

c) 3X-21= 0

3x = 0 +21

3x = 21

x = 21/3

x = 7

d) 6+X= 6,4

x = 6,4 - 6

x = 0,4

e) 4X+3= -19

4x =-19 - 3

4x = -22

x = -22/4

x = 5,5

f) 5X+2=2X-1

5x - 2x = -1 -2

3x = -3

x = -3/3

x = -1

g) 6-3X=-10-4X

-3x + 4x = -10 -6

x = -16

Explicação passo-a-passo: