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2 minus 8x equals 10x plus 20
x=?
2 minus 8x equals 10x plus 20
x=?
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2-8x = 10x+20
Add 8x to both sides:
2-8x+8x = 10x+20+8x
2 = 18x+20
Subtract 20 from both sides:
2-20 = 18x+20-20
-18 = 18x
Divide both sides by 18:
-18/18 = 18x/18
-1 = x
Answer: x = -1
Add 8x to both sides:
2-8x+8x = 10x+20+8x
2 = 18x+20
Subtract 20 from both sides:
2-20 = 18x+20-20
-18 = 18x
Divide both sides by 18:
-18/18 = 18x/18
-1 = x
Answer: x = -1
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2 - 8x = 10x + 20
2 = 18x + 20
-18 = 18x
-1 = x
check with original equation:
2 - 8(-1) = 10(-1) + 20
2 + 8 = -10 +20
10 = 10
(:
You could watch videos like http://www.youtube.com/watch?v=DopnmxeMt… to understand more about solving questions like these.
2 = 18x + 20
-18 = 18x
-1 = x
check with original equation:
2 - 8(-1) = 10(-1) + 20
2 + 8 = -10 +20
10 = 10
(:
You could watch videos like http://www.youtube.com/watch?v=DopnmxeMt… to understand more about solving questions like these.
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2-8x=10x+20
Move the x's to one side
2=10x+8x+20
2=18x+20
then move the simple numbers to the other side:
2-20=18x
-18=18x
now divide by 18 to get x by its self:
-1=x or x=-1
Move the x's to one side
2=10x+8x+20
2=18x+20
then move the simple numbers to the other side:
2-20=18x
-18=18x
now divide by 18 to get x by its self:
-1=x or x=-1
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first, add 8x to both sides 2=10x+8x+20
2) then subtract 20 from both sides 2-20=10x+8x
3) then combine like terms -18=18x
4)then divide each side by 18 -1=x
5)answer is -1
2) then subtract 20 from both sides 2-20=10x+8x
3) then combine like terms -18=18x
4)then divide each side by 18 -1=x
5)answer is -1
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2-8x= 10x +20
-2.............. -2
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-8x = 10x + 18
-10x. -10x
--------------------
-18x= +18
Answer is (x=1)
-2.............. -2
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-8x = 10x + 18
-10x. -10x
--------------------
-18x= +18
Answer is (x=1)
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Simplify.
2-8x=10x+20
2=18x+20
-18=18x
-1=x
X is negative one
2-8x=10x+20
2=18x+20
-18=18x
-1=x
X is negative one