You can put this solution on YOUR website! 5x-18-4x= -36 What did I do? I took the words and wrote them out:
5x: 5 times a number
- :decreased
18-4x: by 18 minus 4 times the same number
= -36: is negative 36
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Solve:
5x-18-4x= -36 Add 18 to both sides:
5x-18+18-4x= -36+18
5x-4x= -18 Subtract x on left:
1x= -18 1x is the same as saying x:
x= -18
Proof:
5(-18)-18-4(-18)= -36 (beware of + and - !)
-90-18+72= -36 (get the 72? -4*-18 and -*-= +)
-108+72=-36
-36=-36 We have the correct answer
