1 answer:
28. 6x+42-20=6x
42-20=0
42-20 gives you 22
22=0
Statement is false
30. -2x-4=-2x-3-1
-2x-4=-2x-4
Statement is true because both sides are identical
32. 2x+8-5=2x+3
8-5=3
3=3
Statement is true for any value of x
34. 3x+(x+4)=18
3x+x+4=18
4x+4=18
4x=18-4
4x=14 (next divide both sides by 4)
x= 7 over 2
7/2
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Answer:
I think the answer is about 10
Step-by-step explanation:
20% of 32= 6.4
20% x 32
20 /100 x 32
Reduce the fraction
1 /5× 32
=32/5
=6.4
Answer:
The 4th one cuz it’s a percent
Step-by-step explanation:
27 because the square root of 81 is 9 and 9 times 3 is 27.
Answer:
A
Step-by-step explanation:
7 and -7 are the opposite on the number line
