1st. Try to make x by itself. Divide 12 on each side.
After it will look like this
x=12
Subtract 4x from both sides
4x +2 = 7x - 13 would then simplify to
3x - 13 = 2 ( you can switch the problem around as long as you dont switch the variables around )
then you have to + 13 which simplifies to
3x = 15
then you divide by 3 which equals
x=5
17∠x-11 set up the equation like this
28∠x add 17 to the other side, and you get x is greater than 28
The picture is blank for me. Please take clearer pictures leveled with the question! :)
To find f(1), substitute 1 for x.
f(1) = (3(1)+7)²
f(1) = (3+7)²
f(1) = 10²
f(1) = 100
