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Solve this problem:
{16×2-18+45+[20×5-15+(54÷2+3)-15]-30}

Sagot :

Riza1viz
[tex]\left \{ 16*2-18+45+[20*5-15+(54:2+3)-15]-30 \right \} =\\\\=\left \{ 32-18+45+[100-15+(27+3)-15]-30 \right \} = \\\\=( 59+100-30 ) = 129[/tex]