Respuesta :

Space

Answer:

H = 40

Step-by-step explanation:

Step 1: Combine like terms

4H + 20 = 180

Step 2: Subtract 20 on both sides

4H = 160

Step 3: Divide both sides by 4

H = 40

Step-by-step explanation:

3H+20+H=180

4H+20=180

4H=180-20

H=160/4

H=40