1) а) 7x+(7x-3)-(-8x-8)=x+26
7x + 7x – 3 + 8x + 8 = 1x + 26
7x + 7x + 8x – x = 26 – 8 + 3
21x = 21
x = 1
б) 5x*(12x+7)-4x*(15x-11)=10+29x
раскроем скобки
60x2+35x-60x2+44x = 10+29x
50x-10 = 0
50x = 10
x = 10/50
х=0,2
2) a) 5y-(7-2y)-(4y+8)=2y
5y – 7 + 2y – 4y – 8 = 2y
5y + 2y – 4y – 2y = 8 + 7
y = 15
б) 6y*(13y-9)-13y*(6y-1)=24y+13
78y2-54y-78y2+13y = 24y+13
-65y-13 = 0
65y+13 = 0
65y = -13
y = -13/65
у=-0,2
1) а) 7x+(7x-3)-(-8x-8)=x+26
7x + 7x – 3 + 8x + 8 = 1x + 26
7x + 7x + 8x – x = 26 – 8 + 3
21x = 21
x = 1
б) 5x*(12x+7)-4x*(15x-11)=10+29x
раскроем скобки
60x2+35x-60x2+44x = 10+29x
50x-10 = 0
50x = 10
x = 10/50
х=0,2
2) a) 5y-(7-2y)-(4y+8)=2y
5y – 7 + 2y – 4y – 8 = 2y
5y + 2y – 4y – 2y = 8 + 7
y = 15
б) 6y*(13y-9)-13y*(6y-1)=24y+13
раскроем скобки
78y2-54y-78y2+13y = 24y+13
-65y-13 = 0
65y+13 = 0
65y = -13
y = -13/65
у=-0,2