Question

Se o segmento AB mede 17cm, determine o valor de x nos casos

Answer 1

a) x + 7 = 17; x = 17 - 7; x = 10 cm

b) 17 + x = 21; x = 21 - 17; x = 4 cm

c) x + 3 + x = 17; 2x = 17 - 3; 2x = 14; x = 7 cm

d) 17 + x - 3 = 2x; 14 = x; x = 14 cm