What is 1/3(x+90)=0
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`1/3(x+90)=0`
Use the distributive property to multiply `1/3` by both `x` and `90` .
`1/3(x) + 1/3(90) =0`
`1/3(x) + 30=0`
Subtract `30` from both sides of the equation.
`1/3(x)=-30`
We want the variable `x` alone on the left side of the equation in order to solve for it. To do this we multiply by the reciprocal of `1/3` which is `3/1` . In algebra what you do on one side of the equal sign you must do on the other, so multiply `-30` by `3/1` as well.
`3/1(1/3)(x) = (3/1) (-30)`
This leaves
`x=-90`
Now check your answer by plugging your solution into the original equation.
`1/3(-90 +90)=0`
`1/3(0) =0`
`0=0` Check
The solution is x=-90.
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1/3 ( x + 90 )
Distribute the 1/3
By distributing, you should get
1/3x + 30 = 0 subtract 30 on both sides
By subtracting, you should get
1/3x = -30 now divide both sides by 1/3
By dividing, you should get
X = -90 which is your answer
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