Question

6x/5-7/2=4x/10+1/2
Mim ajudem por favor e pra agora a tarde

Answer 1

    6x/5 - 7/2 = 4x/10 + 1/2 ⇔

⇔ 12x/10 - 35/10 = 4x/10 + 5/10 ⇔

⇔ 12x - 35 = 4x + 5 ⇔

⇔ 12x - 4x = 5 + 35 ⇔

⇔ 8x = 40 ⇔

⇔ x = 40/8 ⇔

⇔ x = 5

    2x/5 + 1/2 = x ⇔

⇔ 4x/10 + 5/10 = 10x/10 ⇔

⇔ 4x + 5 = 10x ⇔

⇔ 4x - 10x = -5 ⇔

⇔ -6x = -5 ⇔

⇔ 6x = 5 ⇔

⇔ x = 5/6