Answer:
x=7
Step-by-step explanation:
7x-7=4x+14
3x=21
x = 7
7x - 7 = 4x + 14 export like terms to the same side of the equation
7x - 4x = 14 + 7 add like terms
3x = 21 divide both sides by 3
x = 7 is the value will make L parallel to M
