### Solution

a

b

c

$-7y=28$

DivEqn$LHS/(-7)=RHS/(-7)$

$-7-7y =-728 $

SimpQuotSimplify quotient

$y=-728 $

MoveNegDenomToFracPut minus sign in front of fraction

$y=-728 $

CalcQuotCalculate quotient

$y=-4$

d

$14=2z $

MultEqn$LHS⋅2=RHS⋅2$

$14⋅2=2z ⋅2$

FracMultDenomToNumber$2a ⋅2=a$

$14⋅2=z$

MultiplyMultiply

$28=z$

RearrangeEqnRearrange equation

$z=28$

### Hint

a

b

c

d

### Answer

a

b

c

d