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What is five times the sum of some number plus 3 is equal to 7 times the number minus 1?

Anonymous

∙ 7y ago

Updated: 12/9/2022

5a + 3 = 7a - 1

add 1 to both sides

5a + 4 = 7a

so 4 = 2a

as 5a + 2a = 7a

4 = 2a = 2 x 2

so a = 2

Check:

then 5a + 3 = 10 + 3 = 13

and 7a - 1 = 14 - 1 = 13

Wiki User

∙ 7y ago

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