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a fost răspuns

2,5x-1,3=1,2x+1.3
altul 53,1x+0,25=7,15x+96,745

Răspuns :

Meryistrate
2,5x-1,3=1,2+1,3
2,5x-1,2x=1,3+1,3
1,3x=2,6
x=2,6:1,3
x=2
53,1x+0,25=7,15x+96,745
53,1x-7,15x=96,745-0,25
45,95x=96,495
x=96,495:45,95
x=2,1

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