rozwiąż równaie
a)4(x-3)-3(2x-4)=2(x-5)
b)3(2x-1)-(x+5)=-4(x-2)+(x+2)
c)(x+1)(x+4)=x(x+7)
d)
e)
f)
a)4x-12-6x+12=2x-10
-2x=2x-10
0=-10
b)6x-3-x-5=-4x+8+x+2
5x-8=-3x+10
5x+3x=10+8
8x=18/:8
x=18/8
x=9/4
c)x^2+4x+x+4=x^2+7x
5x-7x=-4
-2x=-4/:(-2)
x=2
d)x^2+1+2x=x^2+3x-3x-9-2
2x=-11-1
2x=10/:2
x=5
e)x-1/6 + x+2/3 = x+3/4 /*6
x-1 + 2(x+2)= 3(x+3/2) /*2
2(x-1) + 4(x+2) = 6(x+3)
2x-2+4x+8=6x+18
6x+6=6x+18
6x-6x=18-6
0=12
f)x+4/3 - x-1/2 = x+1/6 /*6
2(x+4) - 3(x-1) = x+1
2x+4 - 3x-3 = x+1
-x-1=x+1
-2x=2 / :(-2)
x=1
rozwiązania w załącznikach ;)
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a)4x-12-6x+12=2x-10
-2x=2x-10
0=-10
b)6x-3-x-5=-4x+8+x+2
5x-8=-3x+10
5x+3x=10+8
8x=18/:8
x=18/8
x=9/4
c)x^2+4x+x+4=x^2+7x
5x-7x=-4
-2x=-4/:(-2)
x=2
d)x^2+1+2x=x^2+3x-3x-9-2
2x=-11-1
2x=10/:2
x=5
e)x-1/6 + x+2/3 = x+3/4 /*6
x-1 + 2(x+2)= 3(x+3/2) /*2
2(x-1) + 4(x+2) = 6(x+3)
2x-2+4x+8=6x+18
6x+6=6x+18
6x-6x=18-6
0=12
f)x+4/3 - x-1/2 = x+1/6 /*6
2(x+4) - 3(x-1) = x+1
2x+4 - 3x-3 = x+1
-x-1=x+1
-2x=2 / :(-2)
x=1
rozwiązania w załącznikach ;)