the answer is 420 :::::::)))))))))))))
Answer:
X is 9
X+6x-15=4x+12
3x-15=12
3x=27
x=9
SO x is 9
n = 7
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
2x2-32=0 is -4,4
4x2-100=0 is -5,5
B: the relationship is proportional
