Question

-3t+20=10t-20-2
Cual es el resultado??!

Answer 1

Hola.

$-3t+20=10t-20-2 \\ \\ -3t+20=10t-22 \\ \\ -3t+20-20=10t-22-20 \\ \\ -3t=10t-42 \\ \\ -3t-10t=10t-42-10t \\ \\ -13t=-42 \\ \\ \frac{-13t}{-13}=\frac{-42}{-13} \\ \\ \boxed{R: t=\frac{42}{13}\quad \left(\mathrm{Decimal:\quad }t=3.23077\dots \right)}$

¡Espero haberte ayudado, saludos...!

Answer 2

Despejamos
-3t+20=10t-20-2

-3t-10t=-20-2-20
-13t=-42

t=-42/-13
t=3,23