Odpowiedź:
1) 4x-3(3x-5)=6x+4
4x -9x+15=6x+4
-5x+15 = 6x+4
-5x-6x=4-15
-11x=-11
x=1
2)8-(4x-12)=8x-(3x-2)
8-4x+12=8x-3x+2
20-4x=5x+2
-4x-5x=2-20
-9x=-18
x=2
3) 5(x-2)+(3+x)=6x-7
5x-10+3+x=6x-7
6x-7=6x-7
0=0, L=P ----> równanie tożsamościowe
4) 4(3x-2)+5=2(6x-4)+x
12x-8+5=12x-8+x
x=5
5) x+1/4 =2x-4/5
x-2x=-4/5 - 1/4
-x= -21/20
x= 1 1/20
6) 3x-2/4=4x-5/3
3x-1/2=4x-5/3
3x-4x= -5/3+1/2
-x= -7/6
x=7/6
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Odpowiedź:
1) 4x-3(3x-5)=6x+4
4x -9x+15=6x+4
-5x+15 = 6x+4
-5x-6x=4-15
-11x=-11
x=1
2)8-(4x-12)=8x-(3x-2)
8-4x+12=8x-3x+2
20-4x=5x+2
-4x-5x=2-20
-9x=-18
x=2
3) 5(x-2)+(3+x)=6x-7
5x-10+3+x=6x-7
6x-7=6x-7
0=0, L=P ----> równanie tożsamościowe
4) 4(3x-2)+5=2(6x-4)+x
12x-8+5=12x-8+x
x=5
5) x+1/4 =2x-4/5
x-2x=-4/5 - 1/4
-x= -21/20
x= 1 1/20
6) 3x-2/4=4x-5/3
3x-1/2=4x-5/3
3x-4x= -5/3+1/2
-x= -7/6
x=7/6