Question

Me ajudem pfv, helpp​

Answer 1

2x=4x-20

-2x=-20

x=-20/-2

x=10

4x-20=y+10

4.10-20=y+10

40-20=y+10

20=y+10

20-10=y

10=y

Letra d)10° e 10°

Espero ajudar ❤