Question

Resolva as equações
a- 6r*2 = 24
b- (x-6)(x+5) + x = 51
c- c*2 +3x(x-12) = 0
d- (x-3)*2= 5x+9
e- 2x(x+1) - x(x+5) = 3(12-x)
f- (x+4)*2+ (x-4) = 160

Answer 1

a)6r.2=24

6r=24/2

6r=12

r=2