Question

Resolva em R as equações a seguir:
a) 3+ ×=0
b)23× + 2=2
c)12-7 + 4×= 25
d)5× - 3×=30
e)4× + 10 = 45-3×
Pfvr me ajundem

Answer 1

Oie, Td Bom?!

a)

3 + x = 0

x = - 3

b)

23x + 2 = 2

23x = 2 - 2

23x = 0

x = 23/0

x = 0

c)

12 - 7 + 4x = 25

5 + 4x = 25

4x = 25 - 5

4x = 20

x = 20/4

x = 5

d)

5x - 3x = 30

2x = 30

x = 30/2

x = 15

e)

4x + 10 = 45 - 3x

4x + 3x = 45 - 10

7x = 35

x = 35/7

x = 5

Att. Makaveli1996