(12y - 2) = 58
12y - 2 = 58
+ 2. +2
—————
12y = 60
—————
12. = 12
y = 5
Answer: x = -7 and y = 10
4x - y = - 38
x + y = 3
y = 3-x
4x - y = - 38
4x -(3-x) = -38
4x - 3 + x = - 38
5x = - 38 + 3
x = - 35/5
x = -7
x + y = 3
- 7 + y = 3
y = 3+7
y = 10
Brainliest pleasee!
Answer:
Step-by-step explanation:
Least common denominator of 4 & 8 = 8
Answer:
7r³ - 3r² + 20r
Step-by-step explanation:
(9r³ + 5r² + 11r) + (-2r³ + 9r - 8r²)
You can get rid of the parentheses since there is nothing to distribute.
9r³ + 5r² + 11r - 2r³ + 9r - 8r²
Combine like factors.
7r³ - 3r² + 20r