Add 3x to both sides of the equation which means y=13+3x
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Answer:
7n - 2 = 19
Step-by-step explanation:
7 times a number is 7n.
7 times a number, decreased by 2, is 7n - 2.
7 times a number, decreased by 2, is 19 is represented by 7n - 2 = 19
First you must distribute the 1/4 to get
: 1/2x^2-3=15
then you have to add three to both sides so it become
: 1/2x^2=18
then divide by 1/2 to get
:x^2 =36
then take the square root to get a final answer of
:x=6
715 because 275/5= 55 then 55x13 will give you 715