4 years ago

What is the answer to 3(2x+5)=3x+4x

Mathematics

1 answer:

andreyandreev [35.5K]4 years ago

6 0

6x+15=3x+4x

6x+15=7x

15=7x-6x

15=1x

x=15/1

x=15

3(30+5)=45+60

3(30+5)=105

45+60=105

so x=15

You might be interested in

!!!!!!!!!!!!!!!!!!!!

Andru [333]

Answer:

$f^{-1}(x)=4x+20$

Step-by-step explanation:

Given

$f(x)=\frac{x}{4}-5\\ \\y=\frac{x}{4}-5$

Swap x and y and solve for y

$y=\frac{x}{4}-5\\ \\x=\frac{y}{4}-5\\ \\x+5=\frac{y}{4}\\ \\4(x+5)=y\\\\y=4x+20$

Final answer

$f^{-1}(x)=4x+20$

Keep in mind that we need to swap the variables because a function and its inverse are symmetrical about the line y=x. See the graph below.

3 0

3 years ago

What’s the trinomial Mila (x-6)^2

MatroZZZ [7]

Hello

(x-6)² = x² -6*2*x + 6²

= x² -12x + 36

8 0

4 years ago

Complete the equation of the line through (6,−6) and (8,8)

vlabodo [156]

Gradient =(y1-y2) / (x1-x2)
(-6-8)/(6-8)
:7

y:mx+c
8:7(8)+c
c:-48
y:7x-48

7 0

3 years ago

What is the measure of angle CAE??

raketka [301]

M <CAE = 360 - 240 = 120 degrees answer

4 0

3 years ago

Help pls!! I’ll give Brainlist!! For questions 1-5 determine if the quadrilaterals are parallelograms or not. Beside the picture

tia_tia [17]

Answer:

1. no

2. yes

3. yes

4. yes

5. no

Step-by-step explanation:

plz mark me as brainliest

8 0

3 years ago

Read 2 more answers