Odpowiedź:
[tex]2-x-\frac{1}{2}=1-0.2x\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;/\cdot10\\20-10x-5=10-2x\\-10x+15=10-2x\;\;\;\;\;\;/-15\\-10x=-2x-5\;\;\;\;\;\;\;\;/+2x\\-8x=-5\;\;\;\;\;\;\;\;/:(-8)\\\\\boxed{x=\cfrac58}[/tex]
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Verified answer
Odpowiedź:
[tex]2-x-\frac{1}{2}=1-0.2x\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;/\cdot10\\20-10x-5=10-2x\\-10x+15=10-2x\;\;\;\;\;\;/-15\\-10x=-2x-5\;\;\;\;\;\;\;\;/+2x\\-8x=-5\;\;\;\;\;\;\;\;/:(-8)\\\\\boxed{x=\cfrac58}[/tex]
b) x-3/2=2(x-5)/9
c) -4x+5(2-x)=-6(1-x/2)
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