SOLUTION: If 7 is added to twice a number and this sum is multiplied by 4, the result is the same as if the number is multiplied by -18 and 2 is added to the product.
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Question 1056067: If 7 is added to twice a number and this sum is multiplied by 4, the result is the same as if the number is multiplied by -18 and 2 is added to the product. Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! If 7 is added to twice a number and this sum is multiplied by 4, the result is the same as if the number is multiplied by -18 and 2 is added to the product.
:
4(2x+7) = -18x + 2
8x + 28 = -18x + 2
8x + 18x = 2 - 28
26x = -26
x = -1
:
See if that checks out
4(2(-1) + 7) = -18(-1) + 2
4(-2 + 7) = 18 + 2
4(5) = 20
