Answer:
x=9
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
12=x+3
Step 2: Flip the equation.
x+3=12
Step 3: Subtract 3 from both sides.
x+3−3=12−3
Answer:
m = 5 n = 
Step-by-step explanation:
5/2x2=5
5/3xsqrt3=5sqrt3/2
All u have to do is substract wich equals -129
Answer:
a=-30
Step-by-step explanation: