1) y = 1
2) x = 1
3) k = -3/4
4) x = 2
Пошаговое объяснение:
1) 3y = y + 2
2y = 2
y = 1
2) 5x - 8 = 4 - 7x
12x = 4 + 8 = 12
x = 1
3) 4k + 7= -3 + 7
4k = -3
k = -3/4
4) 5(x - 5) = -8x + 1
5x - 25 = -8x + 1
13x = 26
x = 26/13 = 2
1)3y=y+2
3y-y=2
2y=2
y=2:2
y=1
2)5x-8=4-7x
5x+7x=4+8
12x=12
x=12:12
x=1
3)4k+7=-3+7
4k=-3+7-7
4k=-3
k=-3:4
k=-0,75
4) 5(x-5) =-8x+1
5x-25=8x+1
5x+8x=1+25
13x=26
x=26:3
x=2
1) y = 1
2) x = 1
3) k = -3/4
4) x = 2
Пошаговое объяснение:
1) 3y = y + 2
2y = 2
y = 1
2) 5x - 8 = 4 - 7x
12x = 4 + 8 = 12
x = 1
3) 4k + 7= -3 + 7
4k = -3
k = -3/4
4) 5(x - 5) = -8x + 1
5x - 25 = -8x + 1
13x = 26
x = 26/13 = 2
1)3y=y+2
3y-y=2
2y=2
y=2:2
y=1
2)5x-8=4-7x
5x+7x=4+8
12x=12
x=12:12
x=1
3)4k+7=-3+7
4k=-3+7-7
4k=-3
k=-3:4
k=-0,75
4) 5(x-5) =-8x+1
5x-25=8x+1
5x+8x=1+25
13x=26
x=26:3
x=2