Question

Give expressions for the following:
7 subtracted from the product of 4 and x.
b) x multiplied by -B and result added
to 40.​

Answer 1

Answer:

Let the number be  x  

So let’s translate the words

“4 times  x  is 27 less than 7 times  x ”

into an algebraic equation.

“4 times  x ” means  4x  

“IS” means  =  

“27 less than 7 times  x ” means  7x−27  

Thus we have the equation to solve for  x , as follows:

4x=7x−27  

Subtract  7x  on both sides

4x−7x=−27  

−3x=−27  

Divide by  −3  on both sides

x=(−27)÷(−3)  

x=9  

Thus the number is “nine”.

Step-by-step explanation:

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