Hey everybody, I really need help solving these math equations. Thank YOU! For helping me!

Use Systematic trial to find the value of each variable.

a) 5+7c=89 b) 26=5+3e c) 8k-16=200

d)525-6u=339

Write each sentence as an equation. Solve each equation.

a) four times a number plus one-hundred is 140.

b) seven times a number is 294

c) four times a number minus 52 is 212

1 answer

a.
5+7c=89
try 10
75
try 14
103
try 12
89

a.

4n+100=140