Solve the system with the addition method:

{(-20 x -16 y, =, 8),(-5 x -4 y,=, 2)

Solve the system with the addition method:

{(-20 x -16 y, =, 8),(-5 x -4 y,=, 2)

Tutors, please sign in to answer this question.

-20x - 16y = 8

-5x -4y = 2.

Multiply the second equation by -4 to get

20x + 16y = -8

Adding it to the first equation, we get

0 = 0

Since this solution is valid regardless of the value we put in for x, the solution set is all real numbers.

Cheryl F.

Reading, Writing, and ESOL Tutor

New York, NY

4.9
(169 ratings)

Jimmy C.

Latin Tutor specializing in grammar, syntax, and translation.

Malverne, NY

5.0
(46 ratings)

Olya T.

Accomplished Writing Tutor

New York, NY

5.0
(61 ratings)