Rozwiąż równania : a) 2x-5 = 13
b) 4x+3=15
c) 3x+6=1
d)5x+7=3
a. 3x-4=5x-12
b.5x+2=x+5
c.x-4=6x-15
d.4+x=6-2x
a.2(x-5)=3(x+3)
b.5(x-2)=7x-13
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a) /+5
2x=18 /:2
x=9
b) /-3
4x=12 /:4
x=3
c)
3x=-5 /-6
x=-5/3 /:3
d) /-7
5x=-4 /:5
x=-4/5
a. /+12
3x+8=5x /-3x
8=2x /:2
4=x
b. /-2
5x=x+3 /-x
4x=3 /:4
x=3/4
c. /+15
x+11=6x /-x
11=5x /:5
11/5=x
d. /-4
x=2-2x /+2x
3x=2 /:3
x=2/3
a.
2x-10=3x+9 /+10
2x=3x+19 /-2x
0=x+19 /-19
x=-19
b.
5x-10=7x-13 /+13
5x+3=7x /-5x
3=2x /:2
3/2=x
a) 2x-5=13 /+5 2x=18 /:2 x=9
b)4x+3=15 /-3 4x=12 /:4 x=3
c)3x+6=1 /-6 3x=-5 /:3 x=-5/3
d)5x+7=3 /-7 5x=-4 /:5 x=-4/5
a.3x-4=5x-12 /+12 3x+8=5x /-3x 8=2x /:2 x=4
b.5x+2=x+5 /-2 5x=x+3 /-x 4x=3 /:4 x=3/4
c.x-4=6x-15 /+15 x+11=6x /-x 11=5x /:5 x=11/5
d.4+x=6-2x /-4 x=2-2x /+2x 3x=2 /:3 x=2/3
a.2(x-5)=3(x+3) 2x-10=3x+9 /-2x -10=x+9 /-9 x=-19
b.5(x-2)=7x-13 5x-10=7x-13 /-5x -10=2x-13 /+13 3=2x /:2 x=3/2