PLS help me with thisss:(

hope it helps

C and B

Step-by-step explanation:

(6)

× ← cancel 3x - 7y on numerator and denominator

= × = = → C

(7)

÷

Factorise the denominators of both fractions

x² - 9 = x² - 3² = (x - 3)(x + 3) ← difference of squares

4x - 12 ← factor out 4 from each term

= 4(x - 3)

Then rewrite as

÷ ← cancel 8 and 4 by 4

= ÷

• leave first fraction, change ÷ to × , turn second fraction ' upside down'

= × ← cancel x - 3 on numerator and denominator

= × ← cancel 2 and 6 on numerator and denominator

= → B

answer: the value of x is 7cm

step-by-step explanation:

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step-by-step explanation: