Odpowiedź :
4x = 15, x= [tex]\frac{15}{4}[/tex], x=3[tex]\frac{3}{4}[/tex]
2x + 12 = 10, 2x= -2, x= -1
x + 4 = 2x – 5, -x=-9, x=9
4(2x +1) = 20, 8x+4= 20, 8x=16, x=2
2(5x – 3) = 5(x - 4) + 2x,
10x-6=5x-20+2x
3x=-26
x= -8[tex]\frac{2}{3}[/tex]
4x = 15, x= [tex]\frac{15}{4}[/tex], x=3[tex]\frac{3}{4}[/tex]
2x + 12 = 10, 2x= -2, x= -1
x + 4 = 2x – 5, -x=-9, x=9
4(2x +1) = 20, 8x+4= 20, 8x=16, x=2
2(5x – 3) = 5(x - 4) + 2x,
10x-6=5x-20+2x
3x=-26
x= -8[tex]\frac{2}{3}[/tex]