Explicación paso a paso:
x=3
ahora comprobemos donde esta x pomenos 3
2(x-1)+3x=13
2(3-1)+3(3)=13
6 -2 +9= 13
4 +9 =13
13 =13
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Explicación paso a paso:
x=3
ahora comprobemos donde esta x pomenos 3
2(x-1)+3x=13
2(3-1)+3(3)=13
6 -2 +9= 13
4 +9 =13
13 =13