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Which equation can be used to solve for x in the following diagram?

Which Equation Can Be Used To Solve For X In The Following Diagram class=

Sagot :

Step-by-step explanation:

B because the straight angle must be 180°

It is a supplementary angel so it’ll be b —> (3x + 12) + x = 180 since it needs to be equal to 180. Supplementary angels only add up to 180.