What is simplify-0.7(4a+5a-3)-0.2a ?

The solution to simplify-0.7(4a+5a-3)-0.2a is -6.5a+2.1

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simplify-0.7(4a+5a-3)-0.2a

simplify

- 0.7 (4 a + 5 a - 3) - 0.2 a

- 6.5 a + 2.1

Solution steps

- 0.7 (4 a + 5 a - 3) - 0.2 a

Add similar elements:

4 a + 5 a = 9 a

= - 0.7 (9 a - 3) - 0.2 a

Expand

- 0.7 (9 a - 3) : - 6.3 a + 2.1

= - 6.3 a + 2.1 - 0.2 a

Group like terms

= - 6.3 a - 0.2 a + 2.1

Add similar elements:

- 6.3 a - 0.2 a = - 6.5 a

= - 6.5 a + 2.1

2 - (- 3^{2})

(5 x + 6) (8 x - 4)

(7 x - 2)^{3}

2 x^{5} + 6 x^{4} + 4 x^{3}

What is simplify-0.7(4a+5a-3)-0.2a ?
The solution to simplify-0.7(4a+5a-3)-0.2a is -6.5a+2.1