Answer:
commutative property
Step-by-step explanation:
It's basically just changing the order of the equation.
Answer:
If two expressions are equal to each other, and you add the same value to both sides of the equation, the equation will remain equal. When you solve an equation, you find the value of the variable that makes the equation true. In order to solve the equation, you isolate the variable
Step-by-step explanation:
3x + 9 = 2x + 12
-2x -2x
1x +9 = 12
-9 -9
x = 3
Because it is an isosceles triangle, the 2 sides that are given will be equal to each other.
15=4x+3
(subtract 3 on both sides)
12=4x
(divide by 4 on both sides)
x=3
Hope it helps!
