Move the -7 to the right, its sign will flip (do you know why?)
Negate both sides to change -x to x
-x = 16+7
-x = 23
x = -23
Answer:
x = 1/3
Step-by-step explanation:
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other:
21x = 7
Divide 21 from both sides:
(21x)/21 = (7)/21
x = 7/21
x = 1/3
x = 1/3 is your answer.
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Since 5•x=5x, which means that the large side is x times larger, x•x should equal 4.
If x^2=4,x=2
so x=2
Answer:
A
Step-by-step explanation:
answer is in above photo
