SOLUTION: b + (b+45) + 90 + (2b-90) + 3/2b = 540 11b=495 b=45 The answer is 90 but I can not get there, please help.

Algebra ->  Linear-equations -> SOLUTION: b + (b+45) + 90 + (2b-90) + 3/2b = 540 11b=495 b=45 The answer is 90 but I can not get there, please help.      Log On


   

Question 1047256: b + (b+45) + 90 + (2b-90) + 3/2b = 540
11b=495
b=45
The answer is 90 but I can not get there, please help.
Found 2 solutions by solver91311, MathLover1:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Your second statement is incorrect. Should be 11b = 990.

Multiply both sides of your original equation by 2 to get:









John

My calculator said it, I believe it, that settles it

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

b+%2B+%28b%2B45%29+%2B+90+%2B+%282b-90%29+%2B%28+3%2F2%29b+=+540...first eliminate parentheses
b+%2B+b%2B45+%2B+90+%2B+2b-90+%2B%28+3%2F2%29b+=+540
b+%2B+b%2B45+%2B+cross%2890%29+%2B+2b-cross%2890%29+%2B%28+3%2F2%29b+=+540
4b+%2B45++%2B%28+3%2F2%29b+=+540
4b%2B%28+3%2F2%29b+=+540-45.........write 4b as %288%2F2%29b
%288%2F2%29b%2B%28+3%2F2%29b+=495
%28+11%2F2%29b+=495..........both sides multiply by 2
2%28+11%2F2%29b+=495%2A2
11b+=495%2A2
11b+=990
b+=990%2F11
b+=90