Question

10x+2^2×5=10^2

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Answer 1

10x+2^2x5=10^2

10x+4x5=100

10x+20=100

10x=100-20=80

x=80:10=8

Answer 2

10x + 2² x 5 = 10²

=> 10x + 4 x 5 = 100

=> 10x + 20 = 100

=> 10x = 100 - 20

=> 10x = 80

=> x = 80 : 10

=> x = 8

Answer 3

\(10x+2^2x.5=10^2\)

\(\Rightarrow10x+4x\times5=100\)

\(\Rightarrow14x=20\)

\(\Rightarrow x=\frac{10}{7}\)