Question

1) resolver cada ecuacion y verificar la solucion


a) 5 x + 20 = 65 b) 13 - 7b + 27 = -56 c) 8 - 2 t = 118

Answer 1

a. 5x+20=65, x= 65-20/5=45/5=9
b. 13+7b+27=-56, b=40+7b=-56, 7b=-56-40, 7b=-96, b=96/7
c. 8-2t=118, -2t=118-8, 12t=110, t=-55