Solve by substitution. i need the full work also. y=x-2 y=4x+1

x = -1

y = -3

Step-by-step explanation:

We can substitute the 2nd equation into the y of the first equation.

4x + 1 = x-2

Subtract x from both sides.

3x + 1 = -2

Subtract 1 from both sides.

3x = -3

x = -1

substitute this x value into the first equation

y = x - 2

y = -1 - 2 = -3

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

there are 25 people coming to the party

step-by-step explanation:

the text says that there will be 22 children at this party, 1 teacher, and 2 parents. so if you add them all together (22+1+2) it will equal 25. (=25)