Answer:
its about 2
Step-by-step explanation:
Simplifying
7(3x + 5y) = 0
(3x * 7 + 5y * 7) = 0
(21x + 35y) = 0
Solving
21x + 35y = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-35y' to each side of the equation.
21x + 35y + -35y = 0 + -35y
Combine like terms: 35y + -35y = 0
21x + 0 = 0 + -35y
21x = 0 + -35y
Remove the zero:
21x = -35y
Divide each side by '21'.
x = -1.666666667y
Simplifying
x = -1.666666667y
Answer:
42
Step-by-step explanation:
6/6 = 1
42/42 = 1
Yu add the products of the two numbers by 7
(3n)-2=5
Move all numbers without a variable to the right side of the equation
3n=7
Divide 7 by 3
n=2.333
Answer:
1) a = 0
Step-by-step explanation:
Taking logarithms base 2, we have ...
-3a·log2(1/8) = 3a·log2(512)
-3a(-3) = 3a(9)
27a -9a = 0 . . . . . . . subtract 9a
a = 0/18 = 0 . . . . . . divide by 18
The solution is a = 0.
