Resolva as equações 5×-3+2×-8=9-6×-5×+3×-8-9
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5x -3 +2x -8 = 9 -6x -5x +3x -8 -9 =>
5x +2x +6x +5x -3x = +3 +8 +9 -8 -9 =>
18x -3x = 20 -17 =>
15x = 3 =>
x = 3/15 ... simplificando
x = 1/5
5x +2x +6x +5x -3x = +3 +8 +9 -8 -9 =>
18x -3x = 20 -17 =>
15x = 3 =>
x = 3/15 ... simplificando
x = 1/5
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