2x-3+x=4-x+7
3x - 3 = 11 - x
3x + x = 11 + 3
4x = 14 /:4
x = [tex]\frac{14}{4}[/tex]
x = [tex]\frac{7}{2}[/tex]
x = [tex]3\frac{1}{2}[/tex]
1-5x-3x=5+x-2
1 - 8x = 3 + x
-8x - x = 3 - 1
-9x = 2
x = [tex]-\frac{2}{9}[/tex]
Na końcu ma być -8 zamiast =8? Jeśli tak to:
12+2x-6=4+x-8
6 + 2x = -4 + x
2x - x = -4 - 6
x = - 10
