<span>Subtract 7 from both sides of the equation. Check: Substitute -4 for x in the original equation. If, after the substitution, the left side equals the right side, your answer is correct. ( -4 ) + 7 = 3 </span>
Answer:
Perimeter = 10 cm
Area = 6.25 cm²
Step-by-step explanation:







So to find the Perimeter of the square, we'll use this formula :





Hence, the perimeter would be 10 cm .


We know that the formula of Area to find the square is,

Note : The answer would always be in cm².





Hence, the area of the square would be 6.25 cm².
<em>We are done !</em>

I hope this helps!
Let me know if you have any questions.
:D
Answer:
When ordering fractions, you don't only have to take in account for the numerator, you also have to take into account the denominator, whereas with whole numbers, you only have to take into account the numerator. Also, in a fraction, you have to make sure the denominators are the same before ordering them.
Answer:
=-5
Step-by-step explanation:
16=-3x+1
Subtract 1 from both sides
15=-3x
Divide both sides by -3 to isolate x
x=-5