I wrote the wrong equation the first time this is the one I actually was wondering if the answer is +35 or -35
2007-04-08 02:46:36 · 6 answers · asked by D 1 in Science & Mathematics ➔ Mathematics
4(7x + 10) = 3(9x - 5) + 20
28x + 40 = 27x - 15 + 20
28x + 40 = 27x + 5
28x + 40 - 27x = 27x + 5 - 27x
x + 40 = 5
x + 40 - 40 = 5 - 40
x = - 35
- - - - - - - - -s-
2007-04-08 03:39:07 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
4(7x + 10) = 3(9x - 5) + 20
28x + 40 = 27x - 15 + 20
(28x - 27x) + (40 - 40) = (27x - 27x) + (5 - 40)
x = - 35
2007-04-08 09:58:06 · answer #2 · answered by michaell 6 · 0⤊ 0⤋
4(7x+10)=3(9x-5) +20
Step one:open parentheses
28x + 40=27x - 15 + 20
Step two:add all like terms
28x + 40=27x + 5
Step three: leave all the X's on one side
x = 5 - 40
x = -35
2007-04-08 09:55:22 · answer #3 · answered by Sara L 2 · 0⤊ 0⤋
Lets open the parenthesis first:
28x + 40 = 27x - 15 + 20..... lets take 27x to the left, and take 40 to right, so their signs change to minus.... :
28x - 27x = -15 +20 - 40..... it think we solved it :)
x = - 35 ......... is that ok?
2007-04-08 09:53:29 · answer #4 · answered by tigerknight80 2 · 0⤊ 0⤋
4(7x+10)=3(9x-5)+20
28x+40=27x-15+20
28x+40=27x+5
28x-27x=5-40
x=-35
2007-04-08 13:10:14 · answer #5 · answered by karla 2 · 0⤊ 0⤋
28x+40= 27x-15+20
28x-27x= -35
"x= -35"
Ans. is -35
2007-04-08 09:56:14 · answer #6 · answered by Raj 2 · 0⤊ 0⤋