Question

a) 5X + 3 = 18 + 2X
b) X +9 = 18
c) 3X - 8 = 13
d) 12X - 10 = 5X + 11
e) 7X - 5 = - 68 - 2X
f) 8X - 9 = - 2X +11
g) X + 4 = - 15
h) 3X + 9 = 12
I) 3X - 3 = 36
j) 3X = 12​

Answer 1

Resposta:

a) 5x-2x = 18-3 => 3x = 15 => x= 5

b) x= 18-9 => x = 9

c) 3x= 13+ 8 => 3x= 21 => x= 7

d) 12x - 5x= 11 + 10 => 7x= 21 => x= 3

e)7x + 2x = -68 + 5 => 9x= -63 => x= -7

f) 8x+2x = 11 +9 => 10x= 20 => x= 2

g) x = -15 -4 => x= -19

h) 3x= 12-9 => 3x= 3 => x= 1

i) 3x = 36+3 => 3x= 39 => x= 13

j) 3x = 12 => x= 4