Question

alguem me ajuda por favor :( ​

Answer 1

$\left \{ {{4x = 8} \atop {x = A}} \right\\\\4xA= 8x\\A = \frac{8x}{4x} = 2x\\ \\\\\left \{ {{4x = 8} \atop {3x = B}} \right.\\\\ 4xB = 24x\\\\B = \frac{24x}{4x} = 6x\\ \\A+B = 8\\2x + 6x = 8\\8x = 8\\x = \frac{8}{8} = 1\\\\A = 2x = 2*1 = 2\\B = 6x = 6*1 = 6$