When solving an equation, Emily's first step is shown below. Which property justifies Emily's first step?t{Original Equation:}Original Equation:-9(-6x^2+6) - 5 =−9(−6x 2+6)−5= -7x2+3−7x 2 +3First Step:-9(-6x^2+6) =−9(−6x 2 +6)=, -7x2+8−7x 2+8

Add 1/7 + -1/7 your answer should be reduced to its smallest form and should not be an improper fraction

Which expression is equivalent to the expression shown?

Asystem of linear equations with more equations than unknowns is sometimes called an overdetermined system. can such a system be consistent? illustrate your answer with a specific system of three equations in two unknowns. choose the correct answer below. a. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 6 b. no, overdetermined systems cannot be consistent because there are fewer free variables than equations. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 12 c. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 8 d. no, overdetermined systems cannot be consistent because there are no free variables. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 24