oblilcz :
a).4x-3=3y+5
b) 5x+2=7-3x
c)4(x-1)=6(1+x)
d ). x+1 - x-1 = 1
2 3 4
Proszę pomocy !!
a)
4x - 3 = 3x + 5
4x - 3x = 5 + 3
x = 8
b)
5x + 2 = 7 - 3x
5x + 3x = 7 - 2
8x = 5
x = 5/8
c)
4(x - 1) = 6(1 + x)
4x - 4 = 6 + 6x
4x - 6x = 6 + 4
-2x = 10
x = -5
d)
.......... ------ / * 12 obustronnie mnoże przez 12 każde wyrażenie
6(x + 1) - 4(x - 1) = 3
6x + 6 - 4x + 4 = 3
2x + 10 = 3
2x = 3 -10
2x = -7
x = -7 : 2
x = -3,5
a) tu zamiast y chyba jest x ?
b) 5x+2=7-3x8x=5x= \frac{5}{8}c) 4(x-1)=6(1+x)4x-4=6+6x4x=1-+6xx=-5d) \frac{6x+6}{12} - \frac{4x-4}{12} = \frac{1}{4} \frac{6x+6-4x+4}{12} = \frac{1}{4}\frac{2x+10}{12} = \frac{1}{4}2x+10=32x=-7x=-3,5
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a)
4x - 3 = 3x + 5
4x - 3x = 5 + 3
x = 8
b)
5x + 2 = 7 - 3x
5x + 3x = 7 - 2
8x = 5
x = 5/8
c)
4(x - 1) = 6(1 + x)
4x - 4 = 6 + 6x
4x - 6x = 6 + 4
-2x = 10
x = -5
d)
.......... ------ / * 12 obustronnie mnoże przez 12 każde wyrażenie
6(x + 1) - 4(x - 1) = 3
6x + 6 - 4x + 4 = 3
2x + 10 = 3
2x = 3 -10
2x = -7
x = -7 : 2
x = -3,5
a) tu zamiast y chyba jest x ?
4x - 3 = 3x + 5
4x - 3x = 5 + 3
x = 8
b) 5x+2=7-3x
8x=5
x= \frac{5}{8}
c) 4(x-1)=6(1+x)
4x-4=6+6x
4x=1-+6x
x=-5
d) \frac{6x+6}{12} - \frac{4x-4}{12} = \frac{1}{4}
\frac{6x+6-4x+4}{12} = \frac{1}{4}
\frac{2x+10}{12} = \frac{1}{4}
2x+10=3
2x=-7
x=-3,5