Guest Nov 14, 2017

1+0 Answers


Next time, make sure not to confuse the x variables for multiplication signs. Here is the difference:

\(\times \ (multiplication \ sign)\\ x \ (variable)\)


\(-4x + 7=3x - 7\)

Add 4x to each side to remove the negative value of x (Rule: always subtract the lesser value when you are solving for a variable [this one was negative, so we added 4 instead of subtracting]):


Add 7 to each side (Again, it is negative):

\(7x = 14\)

Divide by the coefficient of the variable you are solving for (x, coefficient is 7 so we divide each side by 7):


helperid1839321  Nov 14, 2017

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