Question

Simplifique as expressões , reduzindo os termos semelhantes :

a) a + 1 + a - 7

b) -9 + 5m +7x -2x

c)xy² + xy² + x² y

d)3x + 5x + 0,2x - x +2x

Answer 1

a) 2a - 6
b) 5x + 5m - 9 = 5(x+m)-9
c)2xy2 + x2y
d) 7,2x + 2x = 9,2x