20x-3(6x+5)=-2x+2(6x-8)
2x+3(4x-3)=10x+2
5(2x+10)-(4x+5)= -2(8x-3)
Trzeba poprzerzucac x na prawą stronę a liczny normale na prawo i obliczyc dzieki za odp dam naj
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20x-3(6x+5)=-2x+2(6x-8):
20x-18x-15=-2x+12x-16
20x-18x+2x-12x=-16+15
-8x=-1/:(-8)
x=1/8
2x+3(4x-3)=10x+2
2x+12x-9=10x+2
2x+12x-10x=2+9
4x=11/:4
x=11/4=2 3/4=2,75
5(2x+10)-(4x+5)= -2(8x-3)
10x+50-4x-5=-16x+6
10x-4x+16x=6-50+5
22x=-39/:22
x=-39/22=-1 17/22