Solve 16(3x-5) -10(4x-8) = 40

Mathematics

2 answers:

nydimaria [60]3 years ago

6 0

Answer:

x = 5

Step-by-step explanation:

Step 1: Multiply out the brackets

48x - 80 - 40x + 80 = 40 → negative + negative = positive [-10 x -8]

Step 2: Simplify

8x = 40 → collect like terms

Step 3: Solve

x = (40/8)

x = 5

Mashcka [7]3 years ago

3 0

Answer:

x = 5

Step-by-step explanation:

<u>Step 1: Multiply out the brackets</u>

48x - 80 - 40x + 80 = 40 → <em>negative + negative = positive [-10 x -8]</em>

<u>Step 2: Simplify</u>

8x = 40 →<em> collect like terms</em>

<u>Step 3: Solve</u>

x = $\frac{40}{8}$

x = 5

You might be interested in

Juan pays a one-time fee of $30.

Nastasia [14]

Answer:

Step-by-step explanation:

A. c=30+45(h)

B. 30+45(6.5)= 30+292.50= 322.50

He pays a set rate of $30.00. He also pays a charge of $45 an hour for work. The electrician worked 6.5 hours. Take the 45 and multiply that by the 6.5 hours to get $292.50. Take that charge and add the set fee of $30. You get a total of $322.50 he will pay for the electrician.

3 0

3 years ago

What is the value of the expression shown when x = 5?

sergey [27]

3(2(5)+4)-5
3(10+4)-5
30+12-5
42-5
37

4 0

3 years ago

The system of equations is graphed on the coordinate plane. y=−12x−1y=14x−4 A graph with a blue line passing through coordinates

Anika [276]

We have that

case 1)
<span>system of equations is
</span><span>y=−12x−1
y=14x−4

using a graph tool
see the attached figure

the solution of the system is the point (0.115,-2.385)

case 2)
</span>system of equations is
<span>blue line passing through coordinates A (0, -4) and B (4, -3)
</span><span>red line passing through coordinates C(0, -1) and D (4, -3)

</span>using a graph tool
see the attached figure

the solution of the system is the point (4,-3)<span>

</span>