Answer:
x=2
Step-by-step explanation:
-x+5=-11x+25
add +x on both sides -11x+x =-10x
-10x+25=5
subtract 25 on both sides
you get -10x=-20
x=2
Answer:
so x=5 1/3 and
y= -2 2/3
Step-by-step explanation:
x-3y= -2x+3y=16. First we need to move all variables to one side of the equation and whole numbers to the other side of the equation. I see
x-3y+2x-3y=16. -3y-3y equals to -6y. 2x+x=3x. so 3x-6y=16. Lets take out the -6y so our equation would be 3x=16. x would equal 5 1/3. Now lets put back -6y into our equation. Let's now substitute x as 0. 3 times 0 equals 0 so our equation would now be -6y=16 which equals to -2 2/3.
so x=5 1/3 and
y= -2 2/3
<h3>
Answer: It is <u>
not</u>
a solution</h3>
======================================================
Explanation:
Plug in w = -2 and simplify.
3w ≤ -12
3(-2) ≤ -12
-6 ≤ -12
The last inequality is false because -6 is neither equal to -12, nor is -6 smaller than -12. Use a vertical number line to see that -6 is above -12, so it should be -12 ≤ -6.
Since -6 ≤ -12 is false, that makes 3w ≤ -12 false when w = -2.
Therefore, w = -2 is <u>not</u> a solution to the given inequality.
Answer:
Step-by-step explanation:
<u>Equation</u>:
- cos x = 15/21
- cos x = 0.714
- x = arccos 0.714
- x = 44° (rounded to the nearest degree)
Answer:
4(3x+7)
Step-by-step explanation:
12x+28
Bot numbers are divisible by 4
4*3 *x + 4*7
Factor out the 4
4(3x+7)
