Question

7. Simplify the following:
(a) (a - 3b + 2c) + (-4a + 9b - 11c) - (3a - 4b – 7c)
1
1
1
1
(c)
xyz
4. 3
(b) {7–2x+3y-(3x-y)}-(2x-5y+11)
1
+​

Answer 1

Step-by-step explanation:

Vitamins helps in keeping our teeth and bones clean true or false.

Answer 2

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