1.3,91/2,3=1,7
2.1.7*5.4=9,18
3.9,18-4,03=5,15
4.5,15*2,4=12,36
Решите уравнение m/1,8+2,05=9 n/5 =63-56,08 r/8-6,09 z/19,63+0,37 x/78,09+21,91=0,736 y\98,35-83,17=7
glukhova
M/1.8+2.05=9
m/1.8=9-2.05
m/1.8=6.95
m=6.95*1.8
m=12.51
n/5=63-56.08
n/5=6.92
n=6.92*5
n=34.6
x/78.09+21.91=0.736
x/78.09=0.736-21.91
x/78.09=-21.174
x=-1653.47766
y/98.35-83.17=7
y/98.35=7+83.17
y/98.35=90.17
y=8868.2195
1). а+6•а=6+6•6=6+36=42
2). (а-6)•а=(6-6)•6=0•6=0
3). а:3+а=6:3+6=2+6=8
4). (а+9):5=(6+9):5=15:5=3
5). 8•а-21=8•6-21=48-21=27
6). а•9+36=6•9+36=54+36=90
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