What is 3(5x+7)-6(4-2x) ?

The solution to 3(5x+7)-6(4-2x) is 27x-3

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simplify 3(5x+7)-6(4-2x)

simplify

3 (5 x + 7) - 6 (4 - 2 x)

27 x - 3

Solution steps

3 (5 x + 7) - 6 (4 - 2 x)

Expand

3 (5 x + 7) : 15 x + 21

= 15 x + 21 - 6 (4 - 2 x)

Expand

- 6 (4 - 2 x) : - 24 + 12 x

= 15 x + 21 - 24 + 12 x

Group like terms

= 15 x + 12 x + 21 - 24

Add similar elements:

15 x + 12 x = 27 x

= 27 x + 21 - 24

Subtract the numbers:

21 - 24 = - 3

= 27 x - 3

(8 w^{4} + w^{3}) 2

\frac{( 3 - i ) ^{6} ( - 1 - i ) ^{12}}{( 2 + 2 i ) ^{8}}

(2 i)^{2}

\frac{2 + 6 i}{1 - i}

\frac{9 x ^{2}}{27 x ^{2} - 243 x}