What is the first step to solving a system of linear equations algebraically?
Answer:
23
Step-by-step explanation:
To find the Greatest Common Factor, or GCF, we need to factor the first 2 numbers and then find the greatest number that is both present in the prime factorization of both numbers.
253 = 1 * 11 * 23
345 = 3 * 5 * 23
Since 23 is both present in both numbers and is the greatest, the GCF of 253 and 345 is 23.
Answer:
71
Step-by-step explanation:
x + (x+2) + (x+4) + (x+6) + (x+8) + (x+10) = 456
6x + 30 = 456
add -30 to each side
6x = 426
divide each side by 6
x = 71
Answer:
c
Step-by-step explanation:
try calculator and see which fits
Y=-x
(X,Y) will change to -> (-y,-x)
(5,-3) will change to ->(3,-5)
-3 changed to 3 because -(-3) = 3
So the answer is (3,-5). I recently learn about this one too.
