Solve the equation: 3(x - 5) = x + 21
( please help me )

Lines p and q intersect. find the value of b. show your work. cite any theorems you use.

Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.

2x minus y equals 6, x plus y equals negative 3