Question

How do you solve (4f+5)+(5f+40)=180?

Answer 1

Add them up dude.

On adding we get, 9f + 45 = 180

9f = 135

f = 15.

Hope it helps ;-)

Answer 2

explanation

• 4f + 5 + 5f + 40 =180

• 4f + 5 + 5f + 40 =1804f + 5f + 5 + 40 =180

• 4f + 5 + 5f + 40 =1804f + 5f + 5 + 40 =1809f + 45 =180

• 4f + 5 + 5f + 40 =1804f + 5f + 5 + 40 =1809f + 45 =1809f = 180 - 45

• 4f + 5 + 5f + 40 =1804f + 5f + 5 + 40 =1809f + 45 =1809f = 180 - 459f = 135

• 4f + 5 + 5f + 40 =1804f + 5f + 5 + 40 =1809f + 45 =1809f = 180 - 459f = 135f =135 ÷ 9

4f + 5 + 5f + 40 =1804f + 5f + 5 + 40 =1809f + 45 =1809f = 180 - 459f = 135f =135 ÷ 9f=15