Answer:
Well the sides have to be even so
2x+4=3x-10
so x would have to be equal to 14
Answer:
Let x represent the smaller number and y represent the larger number
<u>For the first equation </u>
Four times a number added to 3 times a larger number is 31 is written as
4x + 3y = 31
Making y the subject we have
3y = - 4x + 31
Divide both sides by 3
That's

<u>For the second equation</u>
Seven subtracted from the larger number is equal to twice the smaller number is written as
y - 7 = 2x
Making y the subject
We have
<h3>y = 2x + 7</h3>
Hope this helps you
The problem is that 7^2 is 7*7, and the same for 8^2. The right answer is the square root of 15, or 3.87