Which statements are true the ordered pair (1, 2) and the system of equations? y=−2x+4  7x−2y=3 select each correct answer. when (1, 2) is substituted into the first equation, the equation is true. when (1, 2) is substituted into the first equation, the equation is false. when (1, 2) is substituted into the second equation, the equation is true. when (1, 2) is substituted into the second equation, the equation is false. the ordered pair (1, 2) is not a solution to the system of linear equations. the ordered pair (1, 2) is a solution to the system of linear equations.

This is just a matter of subbing (1,2) into ur equations to see if they make the equations true

(1,2)...x = 1 and y = 2

y = -2x + 4                          7x - 2y = 3
2 = -2(1) + 4                       7(1) - 2(2) = 3
2 = -2 + 4                            7 - 4 = 3
2 = 2 (correct)                     3 = 3 (correct)

when (1,2) is subbed into the first equation, the equation is true
when (1,2) is subbed into the 2nd equation, the equation is true
the ordered pair (1,2) is a solution to the system of equations...and it is a solution to the system because it satisfies both equations...if it would have only satisfied one of them, it would not be a solution to the system of equations

4+2=-2. 1+2=3. y=-2/3x+b. 2=4/3+b. 2/3=b. the answer is y= -2/3x+2/3