Question

Solo the equation is 4 upon 7 +x= 20 upon 7

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Answer 1

$\frac{4}{7 + x} = \frac{20}{7} \\ \\ 28 = 20(7 + x) \\ \\ 28= 140 + 7x \\ \\ 7x = 28 - 140 \\ \\ 7x = - 112 \\ \\ x = - \frac{ 112}{7} \\ \\ x = 16$

Answer 2

Answer is 16

$7+x4=72028=20(7+x)28=140+7x7x=28−1407x=−112x=−7112x=16$

Hope it is helpful