1.-5+y=8
2.1/2x=3 5/6
3.3/4x-5=4
4.2/3x=24
5.3(x-5)+7=16
2006-11-16 07:20:23 · 4 answers · asked by gloriousnina 2 in Education & Reference ➔ Homework Help
1. -5+y=8
=>y=8+5=13 ans.
2. 1/2x=3 5/6
=>x/2=23/6
=>6x=46 =>x=46/6=7 2 /3
.
3.3/4x-5=4
=>3x/4=4+5=9
=>3x=36
=>x=36/3=12
4.2/3x=24
=>3xX24=2
=>72x=2
=>x=2/72=1/36
5.3(x-5)+7=16
=>3x-15+7=16
=>3x=16+15-7=24
=>x=24/3=8
2006-11-16 07:54:12 · answer #1 · answered by alpha 7 · 0⤊ 0⤋
1) -5+y=8
y=8+5
y=13
2) 1/2 x=3 5/6
x/2=23/6
x=23*2/6
x=23/3
3)3/4 x-5=4
3/4 x=4+5
3/4 x=9
x=9*4/3
x=12
4)2/3 x =24
x=24*3/2
x=36
5)3(x-5)+7=16
3x-15+7=16
3x-8=16
3x=16+8
3x=24
x=24/3
x=8
2006-11-16 07:37:25 · answer #2 · answered by flori 4 · 0⤊ 0⤋
1. y=13
2.x=7 2/3
3. x=12
4. x=36
5. x=8
2006-11-16 07:25:56 · answer #3 · answered by mdetaos 3 · 0⤊ 0⤋
question1.
-5+y=8
y=8+5
y=13
question2.
1/2x=3 5/6
x=7.1 (approxitimately)
question3.
3/4x-5=4
3/4x=4+5
3/4x=9 (crossmultiplay)
4*9/3*1=12
x=12
question4.
2/3x=24 (cross multiply)
3*24/2*1
x=36
question5.
3(x-5)+7=16
3(x-5)=16-7
3(x-5)=9 (open the brackets)
3x-15=9
3x=9+15
3x=24
x=24/3
x=8
hope this helps.
2006-11-16 08:35:03 · answer #4 · answered by sunil j 2 · 0⤊ 0⤋