Помогите решить уравнения х*3=1000-340 х:40=36:18

$1.$
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$x \times 3 = 1000 - 340$
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$x \times 3 = 660$
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$x = 660 \div 3$
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$x = 220$
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________________________
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$220 \times 3 = 1000 - 340$
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$660 = 660$
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$2.$
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$x \div 40 = 36 \div 18$
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$x \div 40 = 2$
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$x = 2 \times 40$
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$x = 80$
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$80 \div 40 = 36 \div 18$
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$2 = 2$
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Удачи!