l 0.3q+0.3=4.2

Answer
q=13

↓Steps Explained:↓



Solve for q

0.3q + 0.3 = 4.2

Divide each side by 0.3

0.3q
0.3
=
  
0.3
0.3

Group constants

Group our constants 0.3 and 4.2.
subtract 0.3 from both sides

0.3q + 0.3 - 0.3 = 4.2 - 0.3

Cancel 0.3 on the left side:

0.3q = 3.9

Divide each side of the equation by 0.3

0.3q
0.3
=
  
3.9
0.3

q = 13

Final Answer

q=13

Related Calculators:  Literal Equations  |  Simultaneous Equations  |  4 unknowns using Cramers Rule
h