Answer:
3w + 8 – w = 4w – 2(w – 4)
Step-by-step explanation:
The simplified forms of each of these equations are ...
- 2w +8 = 2w +8 . . . . . .the identity you're looking for
- 7m -5 = 7m +7 . . . . . . never true
- -3y +3 = -3y -6 . . . . . . never true
- -2v +6 = -2v -6 . . . . . . never true
Answer:
a = -0.8b
Step-by-step explanation:
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '-4b' to each side of the equation.
5a + 4b + -4b = 0 + -4b
Combine like terms: 4b + -4b = 0
5a + 0 = 0 + -4b
5a = 0 + -4b
Remove the zero:
5a = -4b
Divide each side by '5'.
a = -0.8b
Simplifying
a = -0.8b
4(10n² - 2) - 5(8n² + 7) =
= 40n² - 8 - 40n² - 35 =
= 40n² - 40n² - 8 - 35 = -43 ← the end
Answer: The length of EF=15 cm.
Step-by-step explanation:
2.8 is greater than 2.78 :)
If you look in the tens place and compare the two numbers, you will see that 8 is greater than 7. That’s how you know that 2.8 is greater than 2.78
