What is m ∠ A D C m∠ADC?

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion