1) - (7-3) = 8-8 (2-y)

2) 1,24x+3,46=1,76x+6,58

3) 4x-2 (x+7) = 2 (3-x)

Question

Алгебра

Видина

1 ноября, 10:38

1) - (7-3) = 8-8 (2-y)

2) 1,24x+3,46=1,76x+6,58

3) 4x-2 (x+7) = 2 (3-x)

+1

Ответы (2)

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Катуня · Answer 1

2) 1,24x+3,46=1,76x+6,58

1,24x-1,76x=6,58-3,46

-0,52x=3,12

x=3,12: (-0,52)

x=-6

Самона · Answer 2

4 х-2 (х+7) = 2 (3-х)

4 х-2 х+14=6-2 х

2 х+14=6-2 х

2 х+2 х=6-14

4 х=-8

х=-8:4

х=-2

1.24 х+3.46=1.76 х+6.58

1.24 х-1.76 х=6.58-3.46

-0.52 х=3.12

х=3.12: (-0.52)

х=-6

1) - (7-3) = 8-8 (2-y)2) 1,24x+3,46=1,76x+6,583) 4x-2 (x+7) = 2 (3-x)

1) - (7-3) = 8-8 (2-y)

2) 1,24x+3,46=1,76x+6,58

3) 4x-2 (x+7) = 2 (3-x)