Решите уравнения пожалуйста))
1) 3x+ 5 = 8x-15
-5x = -20
x = 4
2)3x+16 = 8x-9
-5x = -25
x = 5
3)4+25y = 6+24y
25y-24y = -4+6
y = 2
4)4(x-3) - 16 = 5(x-5)
4x-12-16 = 5x-25
-x = 3
x = -3
5) 5x+27 = 4x+21
x = -6
6)4(3-2y) - 42 = 2(3+2y)
12-8y-42 = 6+4y
-12y = 36
y = -3
7)3(4x-8) = 3x-6
12x-24 = 3x-6/3
4x-8=x-2
3x = 6
x = 2
8)1-5(1,5+x) = 6-7,5x
1-7,5-5x = 6-7,5x
2,5x = 12,5
x = 5
9)3(5-x) + 13= 4(3x-8)
15-3x+13 = 12x-32
-15x = -60
x = 4
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