Use the substitution method to solve the system of equations. choose the correct ordered pair.

D

Step-by-step explanation:

A. 2(2) - (-2)= 4+2=6

B. 2(2) - (-1) = 4+1=5

C. 2(7) - (4) = 14 - 4= 10

   2(7) - 2(4) = 14 - 8 = 6 doesn't = 4

D. 2(8) - (6) = 16 - 6= 10

   2(8) - 2(6) = 16 - 12 = 4 = 4

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

true

step-by-step explanation: