3 years ago

Enter the value of x

Mathematics

1 answer:

Dmitrij [34]3 years ago

8 0

Answer:

Step-by-step explanation:

By Mid-segment Theorem:

2(3x - 4) = 16

3x - 4 = 16/2

3x - 4 = 8

3x = 4 + 8

3x = 12

x = 12/3

x = 4

You might be interested in

Help pls help <br> It’s a grade

marysya [2.9K]

The first option is correct.

You could do all the math to compare the final answers, but I looked at the part where you add. Using a standard algorithm, when going on to the next digit in the second number, you always add a 0 first. The rest of those options don't include a 0.

8 0

3 years ago

(5a-2)(5a+2)-3(1-a)-3a=

attashe74 [19]

So first we need to know the order of operations
P - Parenthesis
E - Exponents
M - Multiplication
D - Division
A - Addition
S - Subtraction

Then the special cases:
(I have attached a picture below)

Lets get into action!
(5a - 2)(5a + 2) - 3( 1 - a ) - 3a
25a² - 4 - 3 + 3a - 3a
25a² - 7
25a² - 7 is the answer