Respuesta:
x = 18
Explicación paso a paso:
7x+15=3(3x-7)
7x+15=9x-21
15+21=9x-7x
36=2x
36/2=x
18=x
7x+15 = 9x - 21
21+15 = 9x-7x
36 = 2x
36/2 = x
18 = x
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Verified answer
Respuesta:
x = 18
Explicación paso a paso:
7x+15=3(3x-7)
7x+15=9x-21
15+21=9x-7x
36=2x
36/2=x
18=x
Explicación paso a paso:
7x+15=3(3x-7)
7x+15 = 9x - 21
21+15 = 9x-7x
36 = 2x
36/2 = x
18 = x