is this -35 or +35?
2007-04-08 02:36:08 · 6 answers · asked by D 1 in Science & Mathematics ➔ Mathematics
4(7x + 10) = 2(9x - 5) + 20
28x + 40 = 18x - 10 + 20
28x + 40 = 18x + 10
28x + 40 - 18x = 18x + 10 - 18x
10x + 40 = 10
10x + 40 - 40 = 10 - 40
10x = - 30
10x /10 = - 30 / 10
x = - 30/10
x = - 3
- - - - - - -s-
2007-04-08 03:46:23 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
4(7x + 10) = 2(9x -5) + 20
28x + 40 = 18x -10 + 20
28x -18x = -10 + 20 - 40
10x = -30
x = -30 / 10
x = -3
2007-04-08 02:49:20 · answer #2 · answered by neaty sally 1 · 0⤊ 0⤋
neither, the answer is -3
* 4(7x+10)=2(9x-5)+20
* 28x + 40 = 18x - 10 + 20
* 10x + 40 = 10
* 10x = - 30
* x = - 3
2007-04-08 02:42:56 · answer #3 · answered by mk 1 · 0⤊ 0⤋
28x+40 = 18x-10+20 >> Distributive method
40+10-20 = 18x-28x >>transpose
30 = -10x
-3=x
Final answer: x=-3
TC! GOD BLESS!
2007-04-09 04:12:12 · answer #4 · answered by Yonamaria 2 · 0⤊ 0⤋
4(7x+10)=2(9x-5)+20
28x+40=18x-10+20
28x-18x=10-40
10x=-30
10x/10=-30/10
x=-3
2007-04-08 02:45:10 · answer #5 · answered by T 2 · 0⤊ 0⤋
4(7x+10)=2(9x-5)+20
28x+40=18x-10+20
28x-18x=-40-10+20
10x=-30
x=-3
2007-04-08 02:43:16 · answer #6 · answered by pokemon maniac 6 · 0⤊ 0⤋