Question

Calcule a equação
A) 5(×+5)=2×-10

B) 10(y-2)=5/4

Answer 1

a) 5(x+5)=2x-10

5x+25=2x-10

5x-2x=-10-25

3x=-35

x=-35/3 ou aproximadamente -11,6

b) 10(y-2)=5/4

10y-20=5/4

10y=5/4+20

10y=85/4

y=21,25/10

y=2,125