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Cum rezolv exercitile asta? 5×=15; -3×=6; 2×-4=10; -3×+1=13; 4 (×-1)=11-×

Răspuns :

Marcantonio592
a=3
b=-2
c=7
d=-4
e=2,75
Aurelcraciun59
5x=15
x=15:5
x=3

-3x=6
x=6:3
x=2

2x-4=10
2x=10+4
2x=14
x=14:2
x=7

-3x+1=13
-3x=13-1
-3x=12
x=12:3
x=4

4(x-1)=11-x
4x-4=11-x
4x+x=11+4
5x=15
x=15:5
x=3


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