Please Help!
Which factor can you cancel from the numerator and denominator to simplify 7 times x minus 21 all over 18 minus 6 times x.? [Hint: (a−x) = − (x − a)]

6 over 7.
x − 3
7 over 6.
x + 3

Question

Please Help!
Which factor can you cancel from the numerator and denominator to simplify 7 times x minus 21 all over 18 minus 6 times x.? [Hint: (a−x) = − (x − a)]

6 over 7.
x − 3
7 over 6.
x + 3

sumi29 · Answer

Alright

sumi29 · Answer

The equations is$$(7x-21)/(18-6x)$$

sumi29 · Answer

Take out the 7 common from the numerator, and the 6 common from the denominator to get$$7(x-3)/6(3-x)$$

sumi29 · Answer

Now $$(3-x) = -(x-3)$$

sumi29 · Answer

So, substituting, you will get the final equation as$$7(x-3)/-6(x-3)$$

sumi29 · Answer

Cancel the (x-3) factor, to get the final answer as -7/6

anonymous · Answer

is it positive 7/6? theres no negative answer choices

sumi29 · Answer

No the final answer is (x-3). That is the factor you can cancel out. -7/6 is what remains.

anonymous · Answer

oh okay thank you so much!