Question

5 +×=90

80÷40-x=10
Le doy lo max de puntos

Answer 1

$5 + x = 90 \\ \\ x = 90 - 5 \\ \\ x = 85$






$\frac{80}{40} - x= 10 \\ \\ 2 - x = 10 \\ \\ x = 2 - 10 \\ \\ x = - 8$

Answer 2

5+x=90

x=90-5=45

80:40-x=10

2-x=10

x=2-10

x=-2