What is simplify-21(a+2b)+14a-9b ?

The solution to simplify-21(a+2b)+14a-9b is -7a-51b

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simplify-21(a+2b)+14a-9b

simplify

- 21 (a + 2 b) + 14 a - 9 b

- 7 a - 51 b

Solution steps

- 21 (a + 2 b) + 14 a - 9 b

Expand

- 21 (a + 2 b) : - 21 a - 42 b

= - 21 a - 42 b + 14 a - 9 b

Group like terms

= - 21 a + 14 a - 42 b - 9 b

Add similar elements:

- 21 a + 14 a = - 7 a

= - 7 a - 42 b - 9 b

Add similar elements:

- 42 b - 9 b = - 51 b

= - 7 a - 51 b

6 x^{2} + 12 x - 48 = 0

2 5^{2}

\frac{3}{7} + \frac{2 x}{5} = - \frac{x}{5} + 1

∣ x + 9 ∣ \leq 4

21 \cdot 9

What is simplify-21(a+2b)+14a-9b ?
The solution to simplify-21(a+2b)+14a-9b is -7a-51b