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Filename: controllers/calculator.php

Line Number: 37

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Given algebraic expression: 2x

And given x = 4 Substituting ‘x’ as ‘4’ in the above given expression, we get

2(4)

2(16) – 12 + 9

32 – 12 + 9

20 + 9 = 29

Given algebraic expression 4x + 6y – 3z = 14

Since x = 2 and y = 3, hence substitute them in the above equation!

8+18–3z=14

26–3z=14

Solving for ‘z’, subtract ‘26’ on both sides

-3z =14–26 -3z = -12

Dividing ‘-3’ on both sides of the equation

z = -12/-3