Given the system of equations. Which of the options represents the resulting equation after an equivalent expression for y is substituted into the second equation.
-4x+y=3
2x-y=12

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

Asif spent $745.10 on 13 new file cabinets for his office. small file cabinets cost $43.50 and large file cabinets cost $65.95. write and solve a system of equations to find the number of small cabinets and large cabinets he purchased. determine if each statement is true or false. 1. he purchased 5 small cabinets. true or false 2. he purchased 7 large cabinets. true or false 3. he spent $527.60 on large cabinets. true or false

What is x3+3x2−16x−48 divided by x−1?

Aquadrilateral has exactly 3 congruent sides davis claims that the figure must be a rectangle why is his claim incorrect.