Question

Rezolvatii ecuatiile:

a) 12 supra 5 : x = 6

b) 4 supra 9 • x = 2

c) 3 supra 4 - 5 supra 6 x = 1 supra 4

d) 2 supra 5 • x - 1 supra 2 = 1 supra 10

e) 1 supra 4 • x + 1 supra 8 = 9 supra 8

VA ROG AJUTOR, DAU COROANA!

Answer 1

a) x=12/5:6
x=12/5×1/6
x=2/5

b) x=2:4/9
x=2×9/4
x=9/2

c) 5/6x=3/4-1/4
5/6x=2/4
5/6x=1/2
x=1/2×6/5
x=3/5

d) 2/5x=1/10+1/2 amplificam 1/2 cu 5
2/5x=1/10+5/10
2/5x=6/10
x=6/10×5/2
x=3/2

e) 1/4x=9/8-1/8
1/4x=1
x=1×4
x=4