i dont understand this at all so please just give me the answers okay so the teacher said she wanted each step show so here are the questions (1.)5+4(x+1)=5 (2.) 4(2x-1)=negative10(x-5)
(3.)4(x+5)-3(x+2)=14
2007-01-21 04:57:11 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
5+4(x+1)=5
4(x+1)= 0 (subtract 5 from both sides)
4x+4=0 (distributive property)
4x= -4 (subtract 4)
x= -1 (divided 4 from both sides)
4(2x-1)= -10(x-5)
8x-4= -10x+50 (distributive)
18x-4=50 (add 10x for both sides)
18x=54 (add 4 for both sides)
x= 3 (divided 18 for both sides)
4(x+5)-3(x+2)=14
4x+20-3x-6=14 (distributive)
x+14=14 (combine like terms)
x= 0 (subtract 14 for both sides)
2007-01-21 05:06:07 · answer #1 · answered by 7 · 0⤊ 0⤋
Why silly? Geese are clever in spite of gossips. And so u r! Make efforts to be optimistic!
2007-01-21 14:25:31 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1. 5+4x+4=5
4x+9=5
4x=-4
x=-1
2.8x-4=-10x+50
8x-4+4=-10x+50+4
8x=-10x+54+10x
18x=54
x=3
3. 4x+20=-3x-6=14
4x+20-20=-3x-6-20=14
4x=-3x-26=14
4x=-3x-26+26=14
4x+3x=-3x+3x=14
7x=14
x=2
2007-01-21 13:17:49 · answer #3 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋