Solve each equation

Algebra
Tutor: None Selected Time limit: 1 Day

Aug 15th, 2014

(1)

m/20 =5/4

Cross multiplying 4m =20*5=100

4m =100

m=100/4 =25

(2)

7y+5 =3y-31

7y-3y= -31-5=-36

4y =-36

y =-9

(3) 

1/2 (t+8) =32

t+8 =2*32=64

t+8=64

t =64-8=56

t=56


Aug 15th, 2014

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