Let
x--------> the number of blue beads
y--------> the number of red beads
we know that

-------> equation 
------> equation 
equate equation
and equation 

find the value of x

therefore
the answer is
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1) 5z-9
2) 7q+12
3) 5.4n-1
4) w+2
5) 8x+2
Answer:
Multiplication of no. with same base
division of no. with same base
taking power of a power
multiplication of two numbers with same exponents
division of two numbers with same exponents
numbers with exponents 0
numbers with negative exponent
Step-by-step explanation: