HELP! distribute and combine these for me PLEASE. AND SHOW ALL YOUR WORK
1.) -2(x + 5) - 7 = 3x + 2(x - 5)
2.) 3(4x + 2) - 6x = 5x - 5(2+ x)
3.) 5(6x - 1) - 10x + 5 = 4(x + 10) - 4x
4.) -6(4 - x) + 12 = 3x - (x - 4)
2006-10-02 06:02:42 · 4 answers · asked by cak 1 in Education & Reference ➔ Homework Help
I can pretty much guarantee these are correct:
1.
-2(x + 5) - 7 = 3x + 2(x - 5)
-2x-10-7=3x+2x-10
-2x-17=5x-10
-7x=7
x=-1
2.
3(4x + 2) - 6x = 5x - 5(2+ x)
12x+6-6x=5x-10-5x
6x+6=-10
6x=-16
x=-8/3
3.
5(6x - 1) - 10x + 5 = 4(x + 10) - 4x
30x-5-10x+5=4x+40-4x
20x=40
x=2
4.
-6(4 - x) + 12 = 3x - (x - 4)
-24+6x+12=3x-x+4
-12+6x=2x+4
4x=16
x=4
2006-10-02 06:12:22 · answer #1 · answered by chaser324 2 · 0⤊ 0⤋
1) -2x-10-7=5x-10; 3x-17=-10; 3x=7; x=1 (2)12x+6-6x=5x-10-5x; 6x=-10-6; 6x=-16; x=-8/3 (3) 30x-5-10x+5=4x+40-4x; 20x=40; x=2; (4) -24+6x+12=3x-x+4; 4x=16; x=4
2006-10-02 06:20:50 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1) -2(x+5)-7= 3x+ 2(x-5)
-2x-10-7= 3x+2x-10
-2x-17=5x-10
-7x=7 (Sign changes)
x= -1 (i think this is the answer! not too sure!)
2) 3(4x + 2) - 6x = 5x - 5(2+ x)
12x+6-6x=5x-10-5x
6x+6=-10
6x=-16
x=-8/3 (check these answers)
I am too tired to do the rest of the sums!!! Please cross check the answers with your friends!!
2006-10-02 06:05:24 · answer #3 · answered by Anonymous · 0⤊ 0⤋
1. -2(x+5)-7= 3x+ 2(x-5)
-2x-10-7= 3x-2x-10
-2x-17=x-10
-3x=7
x= -7/3
I gave you one.. Hope it's right.. Haven't done algebra in 3 years.. I'm an English major...
2006-10-02 06:06:53 · answer #4 · answered by KIm Z 3 · 0⤊ 0⤋