How do you solve #0.7z+1.9+0.1z=5.5-0.4z#?

Question

2071 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-01-04T20:48:53

#z=3#

1) Begin by moving everything with a variable (in this case #z#)to one side.

#.7z+.1z+.4z=5.5-1.9#

2) Then you can factor out the variable with the constants in a parenthesis.

#z(.7+.1+.4)=5.5-1.9#

3) Solve the right side and what's in the parenthesis.

#z(1.2)=3.6#

4) Divide the right side by what is in the parenthesis, leaving the variable on the left side.

#z=3.6/1.2#

5) This gives the answer to be #3#