ΗΘΙΑ
procedimiento :
[tex]12x+3x-7=10x+8[/tex]
[tex]15x-17=10x+8[/tex]
[tex]15x-7+7=10x+8+7[/tex]
[tex]15x=10x+15[/tex]
[tex]15x-10x=10x+15-10x[/tex]
[tex]5x=15[/tex]
[tex]\frac{5x}{5} =\frac{15}{5}[/tex]
[tex]X=3[/tex]
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Verified answer
ΗΘΙΑ
procedimiento :
[tex]12x+3x-7=10x+8[/tex]
[tex]15x-17=10x+8[/tex]
[tex]15x-7+7=10x+8+7[/tex]
[tex]15x=10x+15[/tex]
[tex]15x-10x=10x+15-10x[/tex]
[tex]5x=15[/tex]
[tex]\frac{5x}{5} =\frac{15}{5}[/tex]
[tex]X=3[/tex]
salu2!!