Question

Resolva as equações
a) 9×-4-4×=16+5
b) 6×+6+6×=18+9×-3
c)2×+8+4×=20+4×-2
d)5×+10+5×=15+5×
e) 8×+2×+4=12-2×

Answer 1

Resposta:

a)9x-4x=16+5+4

5x=25

x=25/5

x=5

b)6x+6x-9x=18-3-6

3x=9

x=9/3

x=3

c)2x+4x-4x=20-2-8

2x=10

x=10/2

x=5

d)5x+5x-5x=15-10

5x=5

x=5/5

x=1