How do you solve for x in #3x + y =7#?

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Answer 1 · 2018-03-23T00:59:11

#x=((-y+7)/3)#

To begin isolating x, use algebraic manipulation to begin moving everything to the opposite side as the x term.

Begin by moving the y term.

#(3x+y=7) = (3x=-y+7)#

Next, divide both sides by 3

#(3x=-y+7) = ((-y+7)/3)#

If you need the answer in slope intercept form just break the fractions apart and rewrite the #-y/3# term as #-1/3y#

#x=-1/3y+7/3#