Question

3x +25=60-5×

-2m+24=+10m

2.5k+3.5k=18

100p-20p=500+20p

Ayudaaa​

Answer 1

Bueno aver empezemos:

$ejercicio \: 3 \\ 2.5k + 3.5k = 18 \\ 6k = 18 \\ k = \frac{18}{6} \\ \\\fbox{k = 3}$

$ejercicio \: 4 \\ 100p - 20p = 500 + 20p \\ 80p - 20p = 500 \\ 60p = 500 \\ p = \frac{500}{60} \\ \\\fbox{p = 8.3} \\ eso \: es \: todo$