how can i check 5x+2(4-x)=38 if the value of x=10??

Answer 1

5x + 2(4 - x) = 38

5(10) + 2(4 - 10) = 38

50 + 2(- 6) = 38

50 + (- 12) = 38

50 - 12 = 38

38 = 38

- - - - - - - - - - -s-

Answer 2

5x+2(4-x)=38
Substitute 10 for x.
5x + 2(4-x) = 38
5(10) + 2(4 -10) = 38
50 + 8 - 20 = 38
38 = 38

Answer 3

Simply substitute the value of 10 in the equation every place that you see an X. Perform the math operations and if the left side equals 38 then 10 is a valid solution.

Answer 4

5(10)+2(4-10)=38 sub 10 for all the x
50+2(-6)=38do parenthesis
50-12=38subtract
38=38

Answer 5

Just substitute 10 for the x in the equation
5*10 + 2*(4-10) = 50 + 2*(-6) = 50 - 12 = 38.

Dewd...... You *really* need to put some effort into studying ☺

Doug

Answer 6

replace x by 10 and

5*10+2(4-10) =38 since

50+ 2 (-6) =50-12 =38

Answer 7

Plug 10 into each value for x and do the math. If the answer comes out as 38, then the value for x is correct.

Answer 8

5(10) + 2(4-10) = 38
50 + 8 - 20 = 38
:==:

Answer 9

Put the value of x as 10 in the equation.
So, you'll get
5(10) + 2(4-10) on the left of the equals sign
Solving this, you get,
50 + 2(-6)
=50 + (-12)
=50-12
=38
So your answer is right
Hope you understood

Answer 10

solution:
first of all, bracket means multiplication. So 5x+8-2x=38(since bracket means multiplication, 2*4=8 and + multiplied by - = -)now bring all the like values to one side. 5x-2x +8=38.
5x-2x=38-8(when one number shifts place from one side of the equal to symbol, the signs change, i.e + into - and * into /)).therefore, 3x=30. now keep the x to one side and the numbers to the other. so x=30/3.(since 3x means 3*x and 3 shifts places)hence, x=10