3 years ago

Simplify 7(2x+5) -4(2x+5)

Mathematics

2 answers:

harina [27]3 years ago

7 0

Answer:

6x+15

Step-by-step explanation:

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

distributive property

(14x+35)-(8x+20)

combine like terms

(14x-8x)+(35-20)

simplify

6x+15

yan [13]3 years ago

4 0

Answer:

6x+15

Step-by-step explanation:

7×[2x+5]-4[2x+5]

14x+35-8x+-20

6x+15

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Solve the equation 3/4x+3-2x = -1/4+1/2x+5

elena55 [62]

Hi there! The answer is x = -1

Let's solve this equation step by step!
$\frac{3}{4} x + 3 - 2x = - \frac{1}{4} + \frac{1}{2} x + 5$

First collect terms.
$- 1 \frac{1}{4} x + 3 = \frac{1}{2} x + 4 \frac{3}{4}$

Subtract (1/2)x from both sides.
$- 1\frac{3}{4} x + 3 = 4 \frac{3}{4}$

Subtract 3 from both sides.
$- 1\frac{3}{4} x = 1 \frac{3}{4}$

And finally divide by -1 3/4
$x = \frac{7}{4} \div - \frac{7}{4} = \frac{7}{4} \times - \frac{4}{7} = - \frac{28}{28} = - 1$