Question

What is the value of x? Identify the missing justifications. M PQR = x + 7 , m SQR = x + 3 , and m PQR + m SQR = m PQS = 100

Answer 1

Angle Addition Postulate and Subtraction Property of Equality

Explanation:

It is shown that mPQR and m SQR are being added together to make mPQS. Substitute, which is listed as the next step, then simplify, You have to SUBTRACT 10 from both sides. It is finished when division is done to simplify to x=45.