3 years ago

12x - 5 = 8x - x + 50 Help please show work and check the solution

Mathematics

1 answer:

Inga [223]3 years ago

3 0

Answer:

x = 11

Step-by-step explanation:

$12x - 5 = 8x - x + 50 \\ 12x - 5 = 7x + 50 \\ 12x - 5 - 7x = 7x + 50 - 7x \\ 12x - 7x - 5 = 50 \\ 5x - 5 = 50 \\ 5x - 5 + 5 = 50 + 5 \\ 5x = 55 \\ x = 11$

and check:

$12(11) - 5 = 8(11) - (11) + 50 \\ 132 - 5 = 77 + 50 \\ 127 = 127$

You might be interested in

If 64 feet of rope weighs 20 pounds how much will 80 feet of the same rope weigh

Nikolay [14]

It would weigh 25 pounds

6 0

3 years ago

Read 2 more answers

Write an expression to 3(7 + 4g)

mafiozo [28]

Answer:

Step-by-step explanation:

21+12g

4 0

3 years ago

The current average property value is two-sevenths more than last year’s average value. What was last year’s average property va

Ilya [14]

Answer:

$63350$

Step-by-step explanation:

Given that the current average property value is two-sevenths more than last year’s average value.

Let x be the last year's average property

Then we have as per the given information this year property value

= $x+\frac{2}{7} x$

Equate this to

$x+\frac{2}{7} x=81450\\9x = 7(81450)\\x = 7(9050)\\x= 63350$

6 0

3 years ago

Will give brainliest lots of points A is the midpoint of LB,Lb =6x-17 and AB=2x+3

NARA [144]

A is the mid point ==> AL = AB = 2AB
6x-17=2(2x+3) => 6x -17 = 4x +6 => 2x = 23 =>x=23/2
then just plug x into LB and AB

5 0

3 years ago

( 2 7/8 + 3 3/8 ) + 1 1/8 =

Monica [59]

Look at the attached picture⤴

Hope this will help u...

5 0

3 years ago