3x + 7 = x
First, subtract 3x from both sides. / Your problem should look like: 7 = x - 3x
Second, simplify x - 3x to -2x. / Your problem should look like: 7 = -2x
Third, divide both sides by -2. / Your problem should look like: [tex] \frac{7}{-2} [/tex] = x
Fourth, simplify [tex] \frac{7}{-2} [/tex] to [tex] -\frac{7}{2} [/tex] / Your problem should look like: [tex]- \frac{7}{2} [/tex] = x
Fifth, switch sides. / Your problem should look like: x = [tex] -\frac{7}{2} [/tex]
Answer as fraction: [tex] -\frac{7}{2} [/tex]
Answer as decimal: -3.5
