2x-4(5x + 1) = 3x + 17
please show your work so i can undrestand how you got your answer
2007-02-05 12:00:04 · 8 answers · asked by sexyjay1962 1 in Science & Mathematics ➔ Mathematics
2x-4(5x + 1) = 3x + 17
2x-20x-4 3x+17
-18x-4 = 3x+17
-21x-4=17
-21x= 21
x= -1
2007-02-05 12:03:45 · answer #1 · answered by 7 · 2⤊ 0⤋
Use distributive property:
2x-20x-4=3x+17
-18x-4=3x+17
Subtract 3x from both sides:
-21x-4=17
Add 4 from both sides:
-21x=21
Divide -21 from both sides:
x=-1
Check:
2(-1)-4(5(-1)+1)=3(-1)+17
-2-4(-5+1)=-3+17
-2-4(-4)=14
-2+16=14
14=14
2007-02-05 20:04:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Distribute the 4: 2x -20x -4 = 3x + 17
Combine like terms: -18x -4 = 3x + 17
Add 4 to both sides: -18x - 4 + 4 = 3x + 17 + 4
Subtract 3x from both sides: -18x = 21
Divide both sides by -18: x = 21 / -18
2007-02-05 20:04:10 · answer #3 · answered by koolkat 3 · 1⤊ 0⤋
2x-4(5x + 1) = 3x + 17
2x-20x-4=3x+17
-18x-4=3x+17
-21x-4=17
-21x=21
x=-1
2007-02-05 20:04:02 · answer #4 · answered by leo 6 · 1⤊ 0⤋
2x-4(5x+1)=3x+17
2X-20x-4=3x+17
-18x-4=3x+17
+4 +4
-18x=3x+21
-3x -3x
-21x=21
divide by -21
x=-1
2007-02-05 20:06:25 · answer #5 · answered by goofy's child 4 · 0⤊ 0⤋
2x-4(5x+1)=3x+17
2x-4*5x-4*1=3x+17
2x-20x-4=3x+17
-18x-4=3x+17
subtract three x from both sides
and add 4 to both sides
-21x=21
x=-1
2007-02-05 20:05:39 · answer #6 · answered by nnenna217 2 · 0⤊ 0⤋
2x-4(5x+1)=3x+17
2x-20x-4=3x+17
-18x-4=3x+17
-4=21x+17
-21=21x
x=-1
2007-02-05 20:06:23 · answer #7 · answered by WastedPaint 2 · 0⤊ 0⤋
2x-20x-4=3x+17
-18x-4=3x+17
-18x-4+4=3x+17+4
-18x-3x=3x-3x+21
-21x=21
-21x/-21=21/-21
x=-1
2007-02-05 20:07:05 · answer #8 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋