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

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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 $3$

How do you solve 0.7z+1.9+0.1z=5.5-0.4z0.7z+1.9+0.1z=5.5-0.4z?