Simplifying
12x + -8x = 12
Combine like terms: 12x + -8x = 4x
4x = 12
Solving
4x = 12
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '4'.
x = 3
Simplifying
x = 3
Answer:
1st answer
Step-by-step explanation:
From pythagorus theorem.
Since hypotenuse

Answer:
an isos. triangle
Step-by-step explanation: