Question

Resolva a equaçois
© 2x +3=9
@ 5x-1 = 14
b)3×-4=2
© 2+3x = 8
e) 1+4x=5​

Answer 1

Resposta:

A)2×+3=9

2×=9-3

2×=6

×=6/2

×=3

B) 5×-1=14

5×=14+1

5×=15

x=15/5

×=3

C) 3×-4=2

3×=2+4

3×=6

×=6/3

×=2

D) 2+3×=8

+3x=8-2 •(-1)

3×=6

×=6/3

x=2

E) 1+4×=5

+4×=5-1 •(-1)

4×=4

×=4/4

×=1