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2x+14=6x-15
2x-6x=-15-14
-4x=-29
x=29/4
x=7 1/4
3(x-5)+7=x+1
3x-15+7=x+1
3x-x=1+15-7
2x=9
x=9/2
x=4 1/2
2x+14=6x-15
2x-6x=-15-14
-4x=-29/:(-4)
x=7,25
3(x-5)+7=x+1
3x-15+7=x+1
3x-x=1+15-7
2x=9/:2
x=4,5
Myślę, że pomogłam ;D
Pozdro ;*
2x+14=6x-15
2x-6x=-14-15
-4x=-29/(-4)
x=71/4
2. 3(x-5)+7=x+1
3x-15+7=x+1
3x-x=15-7+1
2x=9/2
x=41/2