can you help me out?

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the sum of three times a number and twenty is five.find the number.

2007-05-02 07:32:47 · 3 answers · asked by ron r 1 in Science & Mathematics ➔ Mathematics

3x + 20 = 5

3x + 20 - 20 = 5 - 20

3x = - 15

3x / 3 = - 15 / 3

x = - 15 / 3

x = - 5

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2007-05-02 09:20:12 · answer #1 · answered by SAMUEL D 7 · 0⤊ 1⤋

the sum of three times a number (3x) and twenty (+20) is five
(=5). find the number.

3x + 20 = 5
3x = 5 - 20
3x = -15
x = -15 divided by 3
x = -5

2007-05-02 14:39:30 · answer #2 · answered by ll 2 · 0⤊ 0⤋

3x + 20 = 5
3x = -15
x = -5