Question

x + 2x = 72
What is the value of x

Answer 1

x + 2x = 72

1x + 2x = 72

3x = 72

x = 72/3

x = 24

Answer 2

$x + 2x = 72$

Collect the like terms

$x + 2x = 3x$

$3x = 72$

Taking 3 to RHS

$x = 72 \div 3$

$72 \div 3 = 24$

So

$x = 24$

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