8x - 3 = 15x + 18
First, subtract 8x from both sides. / Your problem should look like: [tex]-3 = 15x + 18 - 8x[/tex]
Second, simplify 15x + 18 - 8x to 7x + 18. / Your problem should look like: [tex]-3 = 7x + 18[/tex]
Third, subtract 18 from both sides. / Your problem should look like: [tex]-3 - 18 = 7x[/tex]
Fourth, subtract -3 - 18 to get -21. / Your problem should look like: [tex]-21 = 7x[/tex]
Fifth, divide both sides by 7. / Your problem should look like:[tex] -\frac{21}{7} [/tex] = x
Sixth, simplify [tex] \frac{21}{7} [/tex] to 3. / Your problem should look like: [tex]-3 = x[/tex]
Seventh, switch sides. / Your problem should look like: [tex]x = -3[/tex]
Answer: x = -3
