Question

4.Реши уравнения с проверкой
у:4 = 318:3
х: 2 = 750 : 6
у + 565 = 207 - 4
у – 120 = 203 - 3
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Answer 1

$y \div 4 = 318 \div 3 \\ y \div 4 = 106 \\ y = 106 \times 4 \\ y = 424 \\ 424 \div 4 = 106.$

$x \div 2 = 750 \div 6 \\ x \div 2 = 125 \\ x = 125 \times 2 \\ x = 250 \\ 250 \div 2 = 125.$

$y + 565 = 207 - 4 \\ y + 565 = 203 \\ y = 203 - 565 \\ y = - 362 \\ - 362 + 565 = 203.$

$y - 120 = 203 - 3 \\ y - 120 = 200 \\ y = 200 + 120 \\ y = 320 \\ 320 - 120 = 200.$