Angle Abc and bca are supplimentary. Angle abc is 140 degrees. If angle bca is named as x over 2 plus ten, what could be the value of x

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Answer:

x-60

Step-by-step explanation:

Supplementary angles add up to 180 so bca must be 40 degrees.

x/2+10=40

-10 from both sides

x/2=30

Multiply 2 to both sides

x=60