Answer: <u><em>x=8</em></u>
Step-by-step explanation:
Simplifying
3(x + -2) = 18
Reorder the terms:
3(-2 + x) = 18
(-2 * 3 + x * 3) = 18
(-6 + 3x) = 18
Solving
-6 + 3x = 18
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '6' to each side of the equation.
-6 + 6 + 3x = 18 + 6
Combine like terms: -6 + 6 = 0
0 + 3x = 18 + 6
3x = 18 + 6
Combine like terms: 18 + 6 = 24
3x = 24
Divide each side by '3'.
x = 8
Simplifying
x = 8
<h3>
Answer: H = {3, 5, 7}</h3>
Explanation:
We simply list any odd number that is between 2 and 8. The term "roster form" can be thought of as listing the roster of a sports team (eg: baseball). So instead of describing what the numbers look like, we list out the numbers themselves. Those numbers being 3, 5 and 7.
Something like {2,4,6,8} is ruled out because we're dealing with odd numbers only.
3x-4+20=55
Move the variables to one side and the numbers to the other.
3x=55+4-20
Simplify.
3x=59-20
Simplify.
3x=39
39 divided by 3.
x=13
Hope I helped!!!
2/8 = 16/64
1/4 = 1/4 ..................