Answer:
Remembering the properties of numbers is important because you use them consistently in pre-calculus. The properties aren't often used by name in pre-calculus, but you're supposed to know when you need to utilize them.
Answer:
3x-4
Step-by-step explanation:
I might be wrong but good luck.
Answer:
r = - 6
Step-by-step explanation:
Given
6r + 7 = 13 + 7r ( collect terms in r on the left and numbers on the right )
Subtract 7r from both sides
- r + 7 = 13 ( subtract 7 from both sides )
- r = 6 ( multiply both sides by - 1 )
r = - 6
Answer:
4(X+2Y)
Step-by-step explanation:
Rearrange the equation:
X+3X+Y+7Y
Combine like terms (so add coefficients of like variables):
4X+8Y
Factor if necessary:
4(X+2Y)
