Given the system of equations. {left}{-4x+y=3}
{right}{2x-y=12}

Which of the options represents the resulting equation after an equivalent expression for y is substituted into the second equation.
A.2x - (4 x + 3) = 12
B.-4(4 y + ) + y = 3
C. 2 (4 x + 3) - y
D. -4 x + 4 x - 3 = 3

Answer this 30 points and brainliest!

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.