Question

NEED ASAP whats the value of x

Answer 1

Answer:

Step-by-step explanation:you would multiply all the side then I would divide how many sides there are

Answer 2

A straight line is 180°. So:

∠QRT + ∠TRS = 180°    [outside ∠R + inside ∠R = 180]

(45x) + ∠TRS = 180     Subtract 45x on both sides

∠TRS = 180 - 45x  

A triangle is also 180°, so the three angles add up to 180°.

∠R + ∠T + ∠S = 180°    [∠R is also ∠TRS]

(180 - 45x) + (25x) + (57 + x) = 180

180 - 45x + 25x + 57 + x = 180     Combine like terms

237 - 19x = 180       Subtract 237 on both sides

-19x = -57      Divide -19 on both sides

x = 3