Question

11y-7=92
6c=6
a-11=-5
a+3=7
8(m-7)=24
10y+3=63
11(x+9)=22
6x-9=3 9:t=3
10c+6=36
7x-10=-3x+20
9y+18=7y+32
4n+7+3n=14
9c+1-5c=9
3n+2×7=-6n+81
7x+35=2x+65
8(t+2)+3(t+10)=68​

Answer 1

Răspuns:

11 y - 7 = 92

11 y = 92 + 7

11 y = 99

y = 99 : 11

y = 9

6 c = 6

c = 6 : 6

c = 1

a + 3 = 7

a = 7 - 3

a = 4

8( m - 7 ) = 24

8 m - 56 = 24

8 m = 24 + 56

8 m = 80

m = 80 : 8

m = 10

10 y + 3 = 63

10 y = 63 - 3

10 y = 60

y = 60 : 10

y = 6

11( x + 9 ) = 22

11 x + 99 = 22

99 - 22 = - 11 x

77 = - 11 x

x = 77 : ( - 11 )

x = - 7

4 n + 7 + 3 n = 14

7 n + 7 = 14

7 n = 14 - 7

7 n = 7

n = 7 : 7

n = 1

așa procedezi și la celălalte