Question

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$find \: the \: value \: of \: x \: 4x + 5x = 72 angle$

Answer 1

Heya, ______________________________

4x + 5x = 72

9x = 72

x = 72/9 = 8°

Hope it helps☺1!

Answer 2

$4x + 5x = 72 \\ 9x = 72 \\ ...x = 72 \div 9 \\ x = 8$