Question

solve this
12+8×?-30×2=20÷5×4

Answer 1

Let the missing no. Be a

12 + 8a - 30*2 = 20÷5 * 4
=> 12+8a - 60 = 4*4
=> 8a - 48 = 16
=> 8a = 16+48
=> 8a = 64
=> a = 8

Missing no. = 8

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Answer 2

Hello......... ^_^

Here is your answer,

let the missing number be ' x '

$12 + 8 \times x - 30 \times 2 = 20 \div 5 \times 4 \\ \\ = > 12 + 8x - 60 = 4 \times 4 \\ \\ = > 12 - 60 + 8x = 16 \\ \\ = > - 48 + 8x = 16 \\ \\ = > 8x = 16 + 48 \\ \\ = > 8x = 64 \\ \\ = > x = \frac{64}{8} \\ \\ = x = 8$


Check
$L.H.S. = 12 + 8 \times x - 30 \times 2 \\ \\ = 12 + 8 \times 8 - 60 \\ \\ = 12 + 64 - 60 \\ \\ = 76 - 60 \\ \\ = 16 \\ \\ \\ R.H.S = 20 \div 5 \times 4 \\ \\ = 4 \times 4 \\ \\ = 16 \\ \\ \\ \\L.H.S. = R.H.S$



Hope it helps........... ^_^