Answer:
see below
Step-by-step explanation:
12x+24x+18 = 36x+24-6
Combine like terms
36x+18 = 36x+18
Subtract 36x from each side
36x+18-36x = 36x+18-36x
18 = 18
This is always true, so the equation is true for all values of x
Answer:
r = 24 m
Step-by-step explanation:
The area (A) of a circle is calculated as
A = πr² ( r is the radius )
Here A = 576π , then
πr² = 576π ( divide both sides by π )
r² = 576 ( take the square root of both sides )
r = 
= 24
Answer:
2x-1=31
5(21-1) + y = 32
She notices that each equation contains the expression 2.x-1. Can she
substitute 3y for 2x-1? Why or why not?
b
Substitute 3y for 2x-1 in the second equation to create one equation with
one variable. Then solve for x and y
Step-by-step explanation:
2x-1=31
5(21-1) + y = 32
She notices that each equation contains the expression 2.x-1. Can she
substitute 3y for 2x-1? Why or why not?
b
Substitute 3y for 2x-1 in the second equation to create one equation with
one variable. Then solve for x and y
Answer:
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