Question

2)
solve for x.
17)

Explanation:

Step1: Sum of triangle angles is 180°

$55 + 54 + (x + 74) = 180$

Step2: Simplify left side sum

$55 + 54 + 74 + x = 183 + x$

Step3: Isolate x variable

$x = 180 - 183$

Answer:

$x = -3$