6(x + y) + (x - y) =
First, distribute the 6. Also, remove the second set of parentheses since it is unnecessary.
= 6x + 6y + x - y
Now add like terms. Remember that x is the same as 1x, and y is the same as 1y.
= 7x + 5y
Answer: 7x + 5y
1. B A C
Reason:
A: 4
is 12.6
B: the Square root of 18.7 is 4.32
2. a
Reason: the square root of 80 is 8.9, thus closest to 9 from all the others.
3. C
Reason: 6/7 = 0.86, and the square root of 3/4 = 0.87
Y-5/x-2=4
y-5=4x-8
y=4x-8+5
y=4x-3
Answer:
x=6+9z
Step-by-step explanation:
x-2=4+9z
x-2+2=4+2+9z
x=6+9z
Maybe you should divide 67 and 8 to get to the length of the hypotenuse