1. wykonaj równania:
3x + 5 = 8x
4x+8=3x-9
8,3-2x=0,5
x=1-3(x+1)
Bardzo proszę o rozwiazania, proooosze was!!!!
3x-8x=-5
-5x=-5/(-5)
x=1
4x-3x=-9-8
x=-17
-2x=0,5-8,3
-2x=-7,8/(-2)
x=3,9
x=1-3x-3
x+3x=-3+1
4x=-2/
x=-2/4 czyli -1/2
1.
a)
3x + 5 = 8x3x - 8x = -5
-5x = -5 /:(-5)
x = 1b)4x+8=3x-94x - 3x = -9 - 8
x = -17c)8,3-2x=0,5-2x = 0,5 - 8,3
-2x = -7,8 /:(-2)
x = 3,9d)x=1-3(x+1)
x = 1-3x - 3
x + 3x = 1 - 3
4x = -2 /:4
x = -0,5
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3x + 5 = 8x
3x-8x=-5
-5x=-5/(-5)
x=1
4x+8=3x-9
4x-3x=-9-8
x=-17
8,3-2x=0,5
-2x=0,5-8,3
-2x=-7,8/(-2)
x=3,9
x=1-3(x+1)
x=1-3x-3
x+3x=-3+1
4x=-2/
x=-2/4 czyli -1/2
1.
a)
3x + 5 = 8x
3x - 8x = -5
-5x = -5 /:(-5)
x = 1
b)
4x+8=3x-9
4x - 3x = -9 - 8
x = -17
c)
8,3-2x=0,5
-2x = 0,5 - 8,3
-2x = -7,8 /:(-2)
x = 3,9
d)
x=1-3(x+1)
x = 1-3x - 3
x + 3x = 1 - 3
4x = -2 /:4
x = -0,5