Question

I need some help with these math questions lol
1. x+3+7=2(x)-10+x What is X???
2. 3(5-3(x)+7(x)=9 What is X??

Answer 1

For the first equation, let's simplify and solve for :
x+3+7= 2x - 10 + x
This simplifies to:
x + 10 = 3x - 10
Rearranging terms gives:
20 = 2x
So, a = 10 for the first equation.
For the second equation, let's simplify and solve for :
3(5-3x+7x)=9
This simplifies to:
3(5+4x) = 9
15 + 12x = 9
12x = -6
So, x=-0.5 for the second equation.

Answer 2

For 1:
x+10=3x−10
10=3x−x−10
10=2x−10
10+10=2x−10+10
20=2x
20/2 = 2x/2
10=x
So, x=10
For 2:
3(5−3x+7x)=9
3(5+4x)=9
15+12x=9
15+12x−15=9−15
12x=−6
12x/12 = -6/12
x = -1/2