Question

b) 2x + 4 = -2
c) 4 + x = 16
d) 4x - 3 = 12
e) 8x - 16 = 64
f) x5+ 2 = −1
g) x2− 2 = 13
h) 4x - 4 = 2x + 6
i) 7x - 4 = 2x + 31

Answer 1

Explicação passo-a-passo:

b) 2x + 4 = -2

2x=-2-4

x=-6/2

x=-3

c) 4 + x = 16

x=16-4

x=8

d) 4x - 3 = 12

4x=12+3

x=15/4

x=3,75

e) 8x - 16 = 64

8x=64+16

x=80/8

x=10

f) x5+ 2 = −1

x5=-2-1

x=-3/5

x=-0,6

g) x2− 2 = 13

x2=13+2

x=15/2

x=7,5

h) 4x - 4 = 2x + 6

4x-2x=6+4

2x=10

x=10/2

x=5

i) 7x - 4 = 2x + 31

7x-2x=31+4

5x=35

x=35/5

x=7