Question

Solve 5x + 3x = 5x + 18. Explain how you found your answer The solution is r = Because is on both sides of the equation, 3x must be equal to so that the equation is true.​

Answer 1

Equations are expressions equated to each other. The value of x from the given equation is 6

Equation and expressions

Equations are expressions equated to each other. Given the expression;

5x + 3x = 5x + 18

Since 5x is on both sides, we will cancel it out

5x + 3x - 5x = 5x + 18 - 5x
3x = 18

Divide both sides by 3

3x/3 = 18/3

x = 6

Hence the value of x from the given equation is 6

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