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

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

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

simplify

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

x + 5

Solution steps

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

Apply the distributive law:

- (a + b) = - a - b

- (2 x + 7) = - 2 x - 7

= 3 (x + 4) - 2 x - 7

Expand

3 (x + 4) : 3 x + 12

= 3 x + 12 - 2 x - 7

Group like terms

= 3 x - 2 x + 12 - 7

Add similar elements:

3 x - 2 x = x

= x + 12 - 7

Subtract the numbers:

12 - 7 = 5

= x + 5

1 \frac{2}{3} \cdot 1 \frac{2}{3}

\frac{a ^{2} - 1}{a + 1}

\frac{6}{4 x} + \frac{3}{2 x}

(x^{2} + \frac{1}{x ^{3}})^{10}