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2(x+7)=3(2x-5)
2x+14=6x-15
2x-6x=-15-14
-4x=-29
x=7,25
b)
3(x-5)+7=x+1
3x-15+7=x+1
3x-x=1+15-7
2x=9
x=4,5
2(x+7)=3(2x-5)
2x+14=6x-15
2x-6x=-15-14
-4x=-29 |:(-4)
x=7.25
b)
3(x-5)+7=x+1
3x-15+7=x+1
3x-8=x+1
3x-x=8+1
2x=9 |:2
x=4.5
P.bardzo:)
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