Question

Carlos solved the system of equations below. What mistake did he make in his work?
the equation 2x + y = 5, x − 2y = 10, his work y = 5 − 2x, x − 2(5 − 2x) = 10, x + 10 + 4x = 10, 5x + 10 = 10, 5x = 0, x = 0, 2(0) + y = 5,
y = 5

Answer 1

able to get anywhere?

Answer 2

no this is crazy i hope that helped

Answer 3

I'll give you a hint: look at the line where the distribution happens

Answer 4

you find it yet ?

Answer 5

hint -- what is -2 * 5 ?

Answer 6

-10

Answer 7

he didn't get a -10, he got a + 10....there is the mistake....in the distribution

Answer 8

ok thanks

Answer 9

do you see it ?