SOLUTION: Solve each equation: 1. 3x + 5 - 6x = 3 - x 2. 3 - (1/5)(x) = 2 3. x - .2x = 6.4

Algebra ->  Equations -> SOLUTION: Solve each equation: 1. 3x + 5 - 6x = 3 - x 2. 3 - (1/5)(x) = 2 3. x - .2x = 6.4      Log On


   

Question 66148: Solve each equation:
1. 3x + 5 - 6x = 3 - x
2. 3 - (1/5)(x) = 2
3. x - .2x = 6.4
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Solve each equation:
1. 3x + 5 - 6x = 3 - x
(3-6)x+5=3-x
-3x+5=3-x
-3x+3x+5=3-x+3x
5=3+2x
5-3=3-3+2x
2=2x
2/2=2x/2
highlight%281=x%29
Check by substituting 1 in for x and seeing if the sides of the equation equal.
3(1)+5-6(1)=3-(1)
3+5-6=3-1
2=2 we're right!!!
:
2. 3 - (1/5)(x) = 2
3-3-%281%2F5%29x=2-3
%28-1%2F5%29x=-1
-5%2A%28-1%2F5%29x=-5%28-1%29
highlight%28x=5%29
Check:
3-%281%2F5%29%285%29=2
3-5%2F5=2
3-1=2
2=2 we're right!!!
:
3. x - .2x = 6.4
Clear the decimals by multiplying everything by 10.
10x-10%28.2x%29=10%286.4%29
10x-2x=64
8x=64
8x%2F8=64%2F8
highlight%28x=8%29
Check:
8-.2(8)=6.4
8-1.6=6.4
6.4=6.4 we're right again.
Happy Calculating!!!