Question

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
h)2(3x-5)=14
me ajudem!!

Answer 1

A) x=8

B)x=-2

C)x=7

d)x=0,4

Answer 2

Olá!

a) x + 2 = 10

x = 10 - 2

x = 8


b) x - 6 = - 8

x = - 8 + 6

x = - 2


$c) \: 3x - 21 = 0 \\ 3x = 0 + 21 \\ 3x = 21 \\ x = \frac{21}{3} \\ x = 7$

d) 6 + x = 6,4

x = 6,4 - 6

x = 0,4

e) 4x + 3 = - 19
4x = - 19 - 3
x = - 22/4 (÷ 2)
x = - 11/4

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

h) 2 (3x - 5) = 14
6x - 10 = 14
6x = 14 + 10
6x = 24
x = 24/6
x = 4

Espero ter ajudado! :)