3(4 - 3s) = 30
First, divide both sides by 3.
[tex]4 - 3s = \frac{30}{3} [/tex]
Second, since 10 goes into 3 to get 30, simplify the fraction to 10.
[tex]4 - 3s = 10[/tex]
Third, subtract 4 from both sides.
[tex]-3s = 10 - 4[/tex]
Fourth, subtract 10 - 4.
[tex]-3s = 6[/tex]
Fifth, divide both sides by -3.
[tex]s = \frac{6}{-3} [/tex]
Sixth, simplify to turn the whole fraction into a negative.
[tex]s = -\frac{6}{3} [/tex]
Seventh, since 2 goes into 3 to get 6, simplify the fraction to 2.
[tex]s = -2[/tex]
Answer: s = -2
