Question

a) 4×+5=21

b) 2×- 1=11

c) 3+2×=2

d) x = 1
3 4

e) x -2=2- x
2 2

Answer 1

a)4x+5=21
4x=21-5
4x=16
x=16/4
x=4

b)2×-1=11
2×=11+1
×=12/2
×=6
c)3+2×=2
2×=2-3
×=-1/2

d)
e) Nao está intendivel essas duas questões.