Respuesta :

Answer

18

Step-by-step explanation:

m+7−5=20

Step 1: Simplify both sides of the equation.

m+7−5=20

m+7+−5=20

(m)+(7+−5)=20(Combine Like Terms)

m+2=20

m+2=20

Step 2: Subtract 2 from both sides.

m+2−2=20−2

m=18

Answer:

m=18