2 7 5x )= 9x 4 July 8, 2019 16 32 64 128 5x 7 )( 9x 2 4x 8 (- 5x 4y 7 2 9x 8y 14 3 5x 7 )- 2 9x 11 )= 4 8x 13 Resolva as equações 2 7 5x )= 9x 4 2 9x 4 7 6 5x 3 18 2x+7 9 =5 4 2x 7