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1. TÍTULO...
Varios cálculos de ÁLGEBRA . . .
2. [3x–5=1] * [(x²+3)/4=7] * [x–3=6] * [3x–1=2³] * [5x–3=7] * [7+2x=5²] * [2x–1=x+3]
2 9 5 3 2 9 3. 4
3. [2x+3=5] * [(x²–1)/5=3] * [x–5=2²] * [3x+2=2³] * [3x–2=7] * [3²+x²=5²] * [3x–5=x+7]
4 1 1 9 6 3 2. 4