Найти корни уравнений 50•(x-173) = 5000:2 1748:x+77=300-177 (471+x):11=781...

50•(x-173) = 5000:2

50•(x-173) = 2500

x-173 = 2500÷50

x-173 = 50

х = 50 + 173

х = 223

▪ПРОВЕРКА:

$50 \times (223-173) = 5000:2 \\ 50 \times 50 = 2500 \\ 2500 = 2500$

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$1748:x+77=300-177 \\ 1748:x+77=123 \\ 1748:x=123 - 77 \\ 1748:x=46 \\ x = 1748 \div 46 \\ x = 38$

▪ПРОВЕРКА:

$1748:38+77=300-177 \\ 46+77=123 \\ 123 = 123$

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$(471+x):11=781 \\ (471+x)=781 \times 11 \\ 471+x=8591 \\ x = 8591 - 471 \\ x = 8120$

▪ПРОВЕРКА:

$(471+8120):11=781 \\8591 \div 11 = 781 \\ 781 = 781$

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$x-(534-279)=156 \times 3 \\ x - 255=468 \\ x = 468 + 255 \\ x = 723$

▪ПРОВЕРКА:

$723-(534-279)=156 \times 3 \\ 723 - 255=468 \\ 468 = 468$