The value of x is -
degrees .
Let's solve the expression
(x+20∘ )+120 ∘ +2x ∘ +x∘ .
Combine like terms to simplify the expression:
(x+x)+20 ∘ +120 ∘ +2x ∘ =3x+140 ∘.
Now, set the expression equal to the given value and solve for
x: 3x+140 ∘ =0
Subtract 140 from both sides:
3x=−140 ∘
Divide by 3:
x=−

So, the value of x is −
degrees.
In x=−
is the solution to the expression (x+20 ∘ )+120 ∘ +2x ∘ +x ∘ .
This means that when you substitute −
for x in the original expression, the equation holds true, and the sum of the angles will be 200 .
Question
Find the value of x in each of the following (x+20°)+120°+2x°+x° .