Question

Diga o valor das seguintes letras

X+90 = 100
Z . 9 = 90
Y / 5 = 2

Answer 1

X+90 = 100
X= 100-90
X= 10

Z × 9 = 90
Z= 90÷9
Z= 10

Y÷5 = 2
Y=2×5
Y= 10


Bons estudos :)

Answer 2

X+90 = 100
x=100-90
x=10
z.9=90
z=90/9
z=10
Y / 5 = 2
Y=2*5
Y=10