Answer:
If simplifed, it'll be -v
Step-by-step explanation:
<h3>Given</h3>
... r + 7 = 9
<h3>Find</h3>
... r
<h3>Solution</h3>
Subtract 7 from both sides of the equation.
... r + 7 - 7 = 9 - 7
... r = 2 . . . . . . simplify
Expressed as a solution set, this may look like ...
... r ∈ {2}
_____
You probably had no trouble solving this in 2nd grade when it was shown to you in the form ...
__ + 7 = 9
Answer:
yes
Step-by-step explanation:
First to find what’s 2x you do 25-11=14, and you know that 7 x 2 =14.
So x= 7.
