Doing a Pre-Algebra Unit Test on Khan Academy

Mathematics

2 answers:

larisa [96]2 years ago

8 0

Answer:

-8,8

Step-by-step explanation:

since y=8 that add 8 to both sides to get rid of the -y. you would then get -4x=32. divide 32 by -4 and you would get -8 so the missing value would be -8

natta225 [31]2 years ago

5 0

Answer:

x=-8

Step-by-step explanation:

First, lets change the standerd form to slop intercept

$-y=24+4x$

$y=-24-4x$

Now, let's subsite for y, and solve for x

$8=-24-4x$

$32=-4x$

$-8=x$

CHECK:

32-8=24

$24=24$

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