3x - 7 = x + 7
3x - x = 7 + 7
2x = 14 | : 2
2(x - 2) + 3 = x - 10
2x - 4 + 3 = x - 10
2x - x = -10 + 4 - 3
[tex]3x - 7 = x + 7 [/tex]
[tex]3x - x = 7 + 7[/tex]
[tex]2x = 14 \: \: \: | \div 2[/tex]
[tex]x = 7[/tex]
[tex]2(x - 2) + 3 = x - 10 [/tex]
[tex]2x - 4 + 3 = x - 10[/tex]
[tex]2x - x = (- 10) + 4 - 3[/tex]
[tex]x = (- 9) [/tex]
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3x - 7 = x + 7
3x - x = 7 + 7
2x = 14 | : 2
x = 7
2(x - 2) + 3 = x - 10
2x - 4 + 3 = x - 10
2x - x = -10 + 4 - 3
x = -9
[tex]3x - 7 = x + 7 [/tex]
[tex]3x - x = 7 + 7[/tex]
[tex]2x = 14 \: \: \: | \div 2[/tex]
[tex]x = 7[/tex]
[tex]2(x - 2) + 3 = x - 10 [/tex]
[tex]2x - 4 + 3 = x - 10[/tex]
[tex]2x - x = (- 10) + 4 - 3[/tex]
[tex]x = (- 9) [/tex]