Question

3x-7=2(x+1) ayudaaaaaaaaaaa​

Answer 1

Respuesta:

3x-7=2(x+1)

1. desarrollar 2(x+1)

2(x+1)= 2•x + 2•1

= 2x+2

= 3x-7=2x+2

2. sumar 7 a ambos lados

3x-7+7=2x+2+7

= 3x=2x+9

3. restar 2x de ambos lados

3x-2x=2x+9-2x

x = 9

espero que te sirva

Answer 2

$\bf \textcolor{blue}{3x - 7 = 2(x + 1)} \\ \\ \bf \textcolor{red}{3x - 7 = 2x + 2} \\ \\ \bf \textcolor{blue}{3x - 2x = 2 + 7} \\ \\ \boxed {x = 9} \\ \\ \bf \textcolor{orange}{comprobacion} \\ \\ \bf \textcolor{red}{3x - 7 = 2(x + 1)} \\ \\ \bf \textcolor{blue}{3(9) - 7 = 2((9 + 1)} \\ \\ \bf \textcolor{red}{27 - 7 = 2(10)} \\ \\ \boxed {20 = 20}$

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