Math is stupid, but obviously I am stupider. Help needed?

Question

-2(t-5)+7t=3t-8

I think my main problem with Algebra is that I cannot visualize it. I failed it in high school yet I aced Geometry. I don't have enough patience for Algebra.

Answer 1

You need to back up and relearn the basics

1) associative property
2) comunitive property
3) distributive property

Using those properties you can solve your equation above

-2(t-5) + 7t = 3t-8
-2t + 10 + 7t = 3t - 8
-2t + 7t - 3t = -8 - 10
2t = -18
t = -9

Answer 2

I was the same way! I had to go to sumemr school for algebra 1 and now I'm in summer school for algebra 2 but I got a B in geometry! What's up w/ that?! lol...but it looks to me like you just distribute...

-2(t-5)+7t=3t-8
-2t+10+7t=3t-8

After you distribute combine like terms...

5t+10=3t-8

add 8 to both sides

5t+18=3t

subtract 5t from both sides

18=-2t

divide by -2 on each side

t= 9

Answer 3

Algebra is the mathematics of the unknown.
You will need it in so many ways in life.
-2(t-5)+7t=3t-8
Order of operation, first remove brackets, apply signs.
-2T + 10 + 7t = 3t - 8
Collect like known/unknown terms on opposite sides.
-2t + 7t - 3t = - 8 - 10
Reduce to simplest terms.
2t = -18 or t = -9

Answer 4

-2t + 10 + 7t = 3t -8
get the similar terms together
like...
-2t + 7t - 3t = -8 -10
while taking terms from one side to the other make sure of changing the signs...
2t = -18
t = -9

hope this helps!!

Answer 5

You have two types of terms: those that are without coefficients and those that have coefficients. Put the coefficients of t on the LHS and the others on the RHS:
t(-2 +7 -3) = -8 -10
2t = -18
t = -9
If you take the time to keep track, it becomes merely a labor; take as many steps as you need. Watch the signs; this is where taking a lot of steps really helps.

Answer 6

-2(t-5)+7t=3t-8
-2t+10+7t=3t-8
10+5t=3t-8
10+2t= -8
2t= -18
t= -9

Now check
-2(-9-5)+7(-9)=3(-9)-8
-2(-14)+7(-9)=3(-9)-8
28-63= -27-8
-35 = -35

Answer 7

You start with:

-2(t-5)+7t=3t-8

Simplify:

-2t+10+7t=3t-8

Put all your like terms on one side:

2t=-18

divide both sides by two and this will solve for "t" :

t=-9

Answer 8

OH yeah -9. I thought you were trying to answer it with the 3t - 8 thing. :P

Answer 9

-2(t-5)+7t=3t-8

-2t+10+7t=3t-8
-2t+7t-3t=-8-10
2t=-18
t=-18/2
t=-9


p.s.: you are a funny guy! xD

Answer 10

Hi Math is only partly algebra. Algebra is simply a way of expressing equality, nothing more. The "=" is the balance point and every thing on one side must equal what's on the other.