MATMA RÓWNANIA! PROSTE.1) 3= 4(x-2) - x +5 2) 7(x-1) - 2(x-6) = x3) 3x/2 - 4x/5 = 2 / - kreska ułamkowa
1) 3= 4(x-2) - x +5
3=4x-8-x+5
3=3x-3
3+3=3x
6=3x /:3
x=2
2) 7(x-1) - 2(x-6) = x
7x-7-2x+12=x
7x-x-2x=7-12
4x=-5 /:4
x=-5/4
3) 3x/2 - 4x/5 = 2
15x/10 - 8x/10=2
7x/10=2 /*10
7x=20 /:7
x=20/7
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1) 3= 4(x-2) - x +5
3=4x-8-x+5
3=3x-3
3+3=3x
6=3x /:3
x=2
2) 7(x-1) - 2(x-6) = x
7x-7-2x+12=x
7x-x-2x=7-12
4x=-5 /:4
x=-5/4
3) 3x/2 - 4x/5 = 2
15x/10 - 8x/10=2
7x/10=2 /*10
7x=20 /:7
x=20/7