Cuál es el valor de x en la ecuación? 2(3x + 2) + 3(4x + 3) = 7(2x + 1) + 18 +
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Respuesta:
2(3x+2 ) + 3(4x+3 ) = 7(2x+1) + 18
6x + 4 + 12x + 9 = 14x + 7 + 18
18x + 13 = 14x + 25
18x - 14x = 25 - 13
4x = 12
x = 12/4
x = 3
Verificamos
2(3(3)+2 ) + 3(4(3)+3 ) = 7(2(3)+1) + 18
2(9 + 2 ) + 3( 12 + 3 ) = 7(6 + 1) + 18
2(11) + 3(15) = 7(7) + 18
22 + 45 = 49 + 18
67 = 67
Explicación paso a paso:
espero que te ayde