Answer:
x=38
×= 90÷4( divide it to get the answer)
20 points were scored.
Since 10% is 1/10 you can multiply his number by 10 to get the actual answer.
Answer:
x=-10
Step-by-step explanation:
first put "x" on one side and the constants on the other
the equation becomes 2x=-20 or -2x=20
both cases divide by 2 and the answer becomes x=-10
or if you end up with -x=10 just multiply by -1 and it ends up the same
Answer: x = 41
Step-by-step explanation: You need to isolate x. First, subtract x from each side. You will get:
-2 = 2x - 84
Next, add 84 to each side.
82 = 2x
Divide by 2 on each side.
X = 41
