Question 986159
x = amount in one container
2x = amount in other container  {one container holds 2 times as much as the other}


x + 2x = 30 {the total amount of water is 30 gallons}
3x = 30 {combined like terms}
x = 10  {divided each side by 3}
2x = 20 {substituted 10, in for x, into 2x}


one container holds 10 gallons
the other container holds 20 gallons
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