Solve for x: 3(x + 1) = -2(x - 1) - 4. 1 -1 -5 -25
@♪Emoticon
Well we use the distributive property first. Do you know how that goes?
expand 3(x + 1) and -2(x - 1) add like terms on the right side subtract 3 from both sides add 2x to both sides divide both sides by 5
Would the answer be -1?
I'm not too good with distributive prop.
No, not -1, do what I told you.
if 5x divided by 5 would it be 1?
1x, but 1x is just x
So since x is just 1 it is A correct?
no, 1x is x. 1x is just x once so its just x alone.
but wouldn't x alone equal 1 therefore making the answer A?
no, x alone is x we don't know the value yet
How do we find out the volume?
3(x + 1) = -2(x - 1) - 4 3x + 1 = -2x + 1 - 4 Now subtract 4 from 1: 3x + 1 = -2x -3 Subtract 1 from both sides: 3x = -2x - 4
One last step, do you know what it is?
distribute?
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