Question

resolva as questões abaixo:
de equação de 1 grau

A) X + 30 = 100
B) 2X+10=25
C) 5X+5= 25
D) 2x+5=25
E) X+4= - 24
F) 3X-20=-120

me ajudem pfvr ​

Answer 1

*RESPOSTA

a)X+30=100

X+30-30=100-30

X=100-30

X=70

S=70x

b) 2x+10=25

2x=25-10

2x=15

X= 15/2

S=15/2

c)5x+5=25

5x=25-5

5x=20

X=4

S=4

d)2x+5=25

2x=25-5

2x=20

X=10

S=10

e)X+4=-24

X=-24-4

X=-28

S=-28

f)3X-20=-120

3x=-120+20

3x=-100

X=-100/3

S=-100/3