Пошаговое объяснение:
2x‐2,2=4,2x
4,2x - 2x = -2,2
2,2x = -2,2
x = -2,2 : 2,2
x = 1
8(6+x)-3x=6x-63
48 + 8x - 3x = 6x - 63
48 + 5x = 6x - 63
6x - 5x = 48 + 63
x = 111
-7x-22=8x+98
8x + 7x = -22 - 98
15x = -120
x = -120 : 15
x = -8
-18-1,3y=38,1+3,8y
3,8y + 1,3y = -18 - 38,1
5,1y = -56,1
y = -56,1 : 5,1
y = -11
14x+6=22-112x
14x + 112x = 22 - 6
126x = 16
x = 16 : 126
x = 8/63
9(8+y)-5y=5y-67
72 + 9y - 5y = 5y - 67
72 + 4y = 5y - 67
5y - 4y = 72 + 67
y = 139
7(3+y)-3y=5y-59
21 + 7y - 3y = 5y - 59
21 + 4y = 5y - 59
5y - 4y = 21 + 59
y = 80
Пошаговое объяснение:
2x‐2,2=4,2x
4,2x - 2x = -2,2
2,2x = -2,2
x = -2,2 : 2,2
x = 1
8(6+x)-3x=6x-63
48 + 8x - 3x = 6x - 63
48 + 5x = 6x - 63
6x - 5x = 48 + 63
x = 111
-7x-22=8x+98
8x + 7x = -22 - 98
15x = -120
x = -120 : 15
x = -8
-18-1,3y=38,1+3,8y
3,8y + 1,3y = -18 - 38,1
5,1y = -56,1
y = -56,1 : 5,1
y = -11
14x+6=22-112x
14x + 112x = 22 - 6
126x = 16
x = 16 : 126
x = 8/63
9(8+y)-5y=5y-67
72 + 9y - 5y = 5y - 67
72 + 4y = 5y - 67
5y - 4y = 72 + 67
y = 139
7(3+y)-3y=5y-59
21 + 7y - 3y = 5y - 59
21 + 4y = 5y - 59
5y - 4y = 21 + 59
y = 80