Question

resolvar as equações a seguir A) 1_3 (4x+7)=2 (x_10

B)_5 (_2x_1)=20

Answer 1

A) 1-3(4x+7) = 2(x-10) 1-12x-20=2x-20 -12x-20=2x-20 -12x-2x=-20+20 -10x=0 X=0/-10x X=0 B)-5(-2x-1)=20 10x+5=20 10x=20-5 10x=15 X=15/10 X=1,5