Answer:
7x - 3
Step-by-step explanation:
3x+(4x-3)
Remove parenthesis
3x + 4x - 3
Combine like terms
3x + 4x = 7x
7x - 3
The answer to this question is x = 13/9 = 1.444
Answer:
B)14.14
Step-by-step explanation:
a square is made of 2 right triangles
the two legs of one right triangle are both 10 so
using Pythagorean theorem we get the square root of 10^2+10^2
this solves to the square root of (200)
which is ≈ 14.14...
Answer: x = 7, x = -15
Step-by-step explanation:
This is an absolute value equation, so it has to be simplified first
|x+4|+10=21
|x+4|=11
Then you set it equal to the two values it can be, getting rid of the absolute value sign.
x+4=11
x+4=-11
x = 7
x = -15
Voila!