1) 4(3-2x)+24=2(3+2x) 2)0.2(5y-2)=0.3(2y-1)-0.5 3)¹/₂(4-3¹/₂x)=1¹/₄x-¹/₂

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вопрос

1) 4(3 - 2x) + 24 = 2(3 + 2x)
12 - 8x + 24 = 6 + 4x
36 - 8x = 6 + 4x
36 = 6 + 12x
30 = 12x
x = 30 / 12
x = 2.5

2) 0.2(5y - 2) = 0.3(2y - 1) - 0.5
y - 0.4 = 0.6y - 0.3 - 0.5
y - 0.4 = 0.6y - 0.8
1.2 = 0.6y - y
1.2 = 0.4y
y = 1.2 / 0.4
y = 3

3) 1/2(4 - 3.5x) = 1.25x - 0.5
2 - 1.75x = 1.25x - 0.5
2 + 0.5 = 1.25x + 1.75x
2.5 = 3x
x = 2.5 / 3
x = 0.8333