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ASAP HELP!! CAN SOMEONE PLS HELP ME WITH 20? U HAVE TO USE 18 and 19 to help you!!! THANK U SM!

ASAP HELP!! CAN SOMEONE PLS HELP ME WITH 20? U HAVE TO USE 18 and 19 to help you!!! THANK-example-1

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18) Let x be the number of coins in the pouch:

3x + 3 = 9; subtract 3 from each side:

3x + - 3 = 9 -3

3x = 6 . Now divide both side by 3:

x = 2 (in each pouch we have 2 coins)

19) SAME logic:

4x + 1 = 2x + 7; subtract 1 from each side:

4x + 1 - 1 = 2x + 7 - 1
4x = 2x + 6; now subtract 2x from each side:

4x - 2x = 2x + 6 - 2x

2x = 6 and x = 3 (each pouch contains 3 coins)

User Jamona Mican
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