Answer:
17
Step-by-step explanation:
Do the exponent first, then subratct it to 81
Answer:
13
Step-by-step explanation:
8x - 20 = 4x + 32 ( F rule angles)
8x-4x=32+20
4x=52
x=52/4
x=13
Answer:
the given equation is y=4/7x
reciprocating both sides you get y/x =7/4
now x and y are directly porportional to each other so
x=ky where k is the constant
or x/y=k ......................(2)
equating 1 and 2
k=7/4
Step-by-step explanation:
To solve by elimination you need to solve for each variable, in this case x, y, and z
x = 1/3
y = 7/3
z = 0
Answer is y= 1/2x+1
One method is first substituting x=4,y=3 and next once again substituting x=y=2
