Odpowiedź :
Odpowiedź:
[tex]3x-4=7x+8\\\\3x-7x=8+4\\\\-4x=12\ \ /:(-4)\\\\x=-3[/tex]
[tex]6-x=-3x-7\\\\-x+3x=-7-6\\\\2x=-13\ \ /:2\\\\x=-\frac{13}{2}\\\\x=-6\frac{1}{2}[/tex]
[tex]5(2x-1)-3=-3-(-x+4)\\\\10x-5-3=-3+x-4\\\\10x-8=-7+x\\\\10x-x=-7+8\\\\9x=1\ \ /:9\\\\x=\frac{1}{9}\\\\\\-4(-3x+5)+1=7-2(1+x)\\\\12x-20+1=7-2-2x\\\\12x-19=5-2x\\\\12x+2x=5+19\\\\14x=24\ \ /:14\\\\x=\frac{24}{14}\\\\x=\frac{12}{7}\\\\x=1\frac{5}{7}[/tex]
Odpowiedź:
3x - 4= 7x +8
3x - 7x = 8 + 4
-4x = 12/: (-4)
x = -3
6 - x = -3x - 7
-x + 3x = -7 - 6
2x = -13/ : 2
x = -6,5
5(2x - 1) - 3= -3 -(-x + 4)
10x - 5 - 3 = -3 + x - 4
10x - x = -3 - 4 +5 +3
9x = 1 /: 9
x = 1/9
-4(-3x + 5) + 1 = 7 - 2 (1 + x)
12x - 20 + 1 = 7 - 2 - 2x
12x + 2x = 7 - 2 + 20 - 1
14x = 24 /: 14
x = 24/14
x= 1 10/14
x = 1 5/7
Szczegółowe wyjaśnienie: