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Denis270
a fost răspuns

s)(8*9+s-5*8)-(30-5*2+5)=100:2:2
t) (36-5*6-t)+9*8-7*10=4*7:7
u)(7*7-6*6+u-24:3-2*10=81-9
v)(v-5*5-2*8)+6*5-5*10=6:2

x)(x+8*2+6*8)-8*9+8*8=6*10+2*4
y)(y+5*5)-6*6=40:2+3
z)(6*9-z)-3*10+16:2=4*3*1

Răspuns :

Corneadiana23
s)
(72+s-40)-(30-10+5)=25
32+s-25=25
7+s=25
s=18

t)(36-30-t)+72-70=4
6-t+2=4
8-t=4
8-4=t
t=4

u)(49-36+u)-8-20=72
-15+u=72
u=72+15
u=87

v)(v-25-16)+30-50=3
v-41+30-50=3
v-61=3
v=3+61
v=64

x)(x+16+48)-72+64=60+8
x+64-72+64=68
x+72=68
x=68-72
x=-4

y)y+25-36=20+3
y-11=23
y=23+11
y=34

z)54-z-30+8=12
32-z=12
-z=12-32
-z=-20/*(-1)
z=20