Explicación paso a paso:
a)
[tex]5(2x - 3 )= 15x[/tex]
[tex]10x - 15 = 15x[/tex]
[tex]15x = 10x - 15[/tex]
[tex]15x - 10x = - 15[/tex]
[tex]5x = - 15[/tex]
[tex]x = \frac{ - 15}{5} [/tex]
[tex]x = - 3[/tex]
b)
[tex]38 = 3x + 2x[/tex]
[tex]38 = 5x[/tex]
[tex]5x = 38[/tex]
[tex]x = \frac{38}{5} [/tex]
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Explicación paso a paso:
a)
[tex]5(2x - 3 )= 15x[/tex]
[tex]10x - 15 = 15x[/tex]
[tex]15x = 10x - 15[/tex]
[tex]15x - 10x = - 15[/tex]
[tex]5x = - 15[/tex]
[tex]x = \frac{ - 15}{5} [/tex]
[tex]x = - 3[/tex]
b)
[tex]38 = 3x + 2x[/tex]
[tex]38 = 5x[/tex]
[tex]5x = 38[/tex]
[tex]x = \frac{38}{5} [/tex]