Try to get x by itself
so minus 8 from both sides
you end up with 5x^2=125
answer is 3rd option
Answer:
C
Step-by-step explanation:
I answered the question already
-10.
Solution: Multiply the negative three fourths by everything in the parenthesis.

Add the negative three halves to both sides.

Multiply both sides by negative four thirds.

Answer: the answer is C
Step-by-step explanation:
just answered it and it was correct :)
The sign that would make the statement true is the division sign which would then make the full expression, (3 × 7) ÷ 21 = 1.
<h3>How to find the sign?</h3>
The statement given is (3 × 7) 21 = 1. There is therefore a need to find the sign that would be between the brackets and "21" which would lead to the answer being 1.
The brackets have to be solved first according to the PEMDAS rule which calls for parenthesis being solved first.
Solving the expression in the brackets gives:
= 3 x 7
= 21
We therefore need a sign that when related to 21 would give the result, 1.
The only sign that can relate 21 to 21 such that the answer would be 1, is division:
= 21 / 21
= 1
In conclusion, the sign that would make the statement true is a division sign.
Find out more on mathematical signs at brainly.com/question/24034494
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