Question

Mă poate ajuta cineva cu ex 2 vă rog? Dau coroniță și 30 puncte!!!

Answer 1

a) 36:9*x=28

4*x=28

x=28:4

x=7

b) (z:8)+18=7*3

(z:8)+18=21

z:8=21-18

z:8=3

z=3*8

z=24

c) (32:w)-6=12:6

(32:w)-6=2

32:w=2+6

32:w=8

w=32:8

w=4

Answer 2

a)

$\bf 36:9\cdot y = 28$

$\bf 4\cdot y = 28$

$\bf y = 28:4$

$\boxed{\bf y=7}$

==================

b)

$\bf (z:8) + 18 = 7\cdot 3$

$\bf (z:8) + 18 = 21$

$\bf (z:8)=21-18$

$\bf z:8=3$

$\bf z=3\cdot8$

$\boxed{\bf z = 24}$

===================

c)

$\bf (32:w)-6 = 12:6$

$\bf (32:w)-6 = 2$

$\bf (32:w) = 2+6$

$\bf (32:w)=8$     |·w (inmultim relatia cu w)

$\bf 32 = 8w$

$\bf w=32:8$

$\boxed{\bf w = 4}$