Question

1) Resolva as equações abaixo:
a) x + 10 = 4
b) 6x+ 10 = 5x +4
c) 3x + 4 = x + 3
d) 5x + 2 + x = 5x - 8
Preciso para agr

Answer 1

❑ Resolução;

a)

=> x+10=4

=> x=4−10

=> x=−6

b)

=> 6x+10=5x+4

=> 6x+10−5x=4

=> x+10=4

=> x=4−10

=> x=−6

c)

=> 3x+4=x+3

=> 3x+4−x=3

=> 2x+4=3

=> 2x=3−4

=> 2x=−1

=> x=−1 /2

=> x=− 1 /2

d)

=> 5x+2+x=5x−8

=> 6x+2=5x−8

=> 6x+2−5x=−8

=> x+2=−8

=> x=−8−2

=> x=−10