Graph the system. {sx + y = 1 2y = 4 2

Solve the equation for

Substitute the given value of x into the equation  

Collect like terms

Move constant to the right hand side and change its sign

Subtract the numbers

Divide both sides of the equation by

Substitute the given value of into the equation

When there is a _ in front of an expression in parentheses , change the sign of each term of the expression

Add the numbers

The possible solution of the system is the ordered pair

Check if the given ordered pair is the solution of the system of equations

Simplify the equalities

Since all of the equalities are true, the ordered pair is the solution of the system

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been looking for the answer havent been able to find it   but good luck with it

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