Question

Solve the following linear equation in one variable.
1) 3x+7=5
2)4x-2=2x+2
3) 4/5x -1=2/5
4) 4/5x=81
5) -5/2x+7=2-x
6) 9/2 x+3=0
Plz write answer fast guess

Answer 1

Answer:

1.) 3x+7=5

3x= 5-7

x=-2/5

= (-0.4)

2.) 4x-2=2x+2

4x-2x=2+2

2x=4

x=2

3.) 4/5x-1=2/5

4/5x= 2/5 +1

4/5x=7/5

x=7/5 - 4/5

=3/5

4.) 4/5x= 81

4=81*5x

x=4/(81*5)

x= 64.80

5.) -5/2x+7=2-x

-5+7=(2-x) (2x)

2= 4x-2x^2

6.) 9/2x +3= 0

9+3=2x

2x=12

x=6

Hope it helps you:)