Answer:
that's a lot I'm sorry but I can't do that all
Step-by-step explanation:
sorrrryyyyy
Answer:
hello :
(2xy)^4 =4x^a (y^b) 4xy
16x^4 y^4 =16x^(a+1) y^(b+1)
a+1 = 4 and b+1 = 4
a=3 and b=3 .......(answer : B)
Step-by-step explanation:
Answer:
x= 4
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)
Answer:
8c - 7r + 10p - 20e
Step-by-step explanation:
Subtract (20c + 15r + 75p + 50e) - (12c + 22r + 65p + 70e)
(20c + 15r + 75p + 50e) - (12c + 22r + 65p + 70e)
Open bracket
20c + 15r + 75p + 50e - 12c - 22r - 65p - 70e
Collect like terms
= 20c - 12c + 15r - 22r + 75p - 65p + 50e - 70e
= 8c - 7r + 10p - 20e
1.
2x+7=2x-7
2x-2x=-7-7
0=-14
Math error.
2.
3x+8=-2x+8
3x+2x=8-8
5x=0
x=0
3.
4(x+1)=4x+4
4x+4=4x+4
4x-4x=4-4
0=0
Correct