Nolan is using substitution to determine if 23 is a solution to the equation. Complete the statements.

j – 16 = 7 for j = 23

First, Nolan must substitute ___ for ___

To simplify, Nolan must subtract from .

23 ___ a solution of the equation.

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Write the rational number in lowest terms 99/-15

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14