The expression 7 + 2(x – 3) + 5x is simplified correctly in the correct order. which of the steps has an incorrect justification? step b step c step d step a

  7 + 2(x - 3) + 5x

= 7 +  2x - 6  + 5x     distributed 2 into x - 3

= 7 - 6  +  2x + 5x     grouped like terms together

=    1     +     7x

You didn't provide an image of the steps but hopefully you can figure it out based on the information I provided.

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq