SOLUTION: I Need Help With This Question 0.12(x-10)-0.05(x-30)=-1.80

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Question 195171: I Need Help With This Question
0.12(x-10)-0.05(x-30)=-1.80
Answer by jim_thompson5910(28715) About Me  (Show Source):
You can put this solution on YOUR website!
0.12%28x-10%29-0.05%28x-30%29=-1.80 Start with the given equation.


12%28x-10%29-5%28x-30%29=-180 Multiply EVERY term (that's outside the parenthesis), by 100 to make every number a whole number.


12x-120-5x%2B150=-180 Distribute.


7x%2B30=-180 Combine like terms on the left side.


7x=-180-30 Subtract 30 from both sides.


7x=-210 Combine like terms on the right side.


x=%28-210%29%2F%287%29 Divide both sides by 7 to isolate x.


x=-30 Reduce.


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Answer:

So the answer is x=-30