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22) Solve: 2x + 5 = 7 A) X= 2 B) X=6 C) x=4 D)x=; E) X = 1

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User Qupera
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1 Answer

4 votes

Solving Equations

The whole idea of solving an equation is finding the variable's value by isolating it on one side of the equation.

Given Equation


\sf{2x+5=7}

Start by subtracting 5 from both sides, like this:


\sf{2x=7-5}


\sf{2x=2}

Then, divide both sides by 2:


\sf{x=1}

We get that x = 1, which is the value of x that makes the equation true.

answered
User Michael Xu
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8.4k points

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