Answer:
Step-by-step explanation:
3/7x+5=8
Subtract 5 from each side of the equation.
3/7x=3
Divide each side by 3/7
X=3/ (3/7)
To divide by a fraction, we Can flip the fraction, (7/3) and multiply.
X= 3(7/3)
X=21/3
X=7
Answer: -2 + 4i
Step-by-step explanation: I'm pretty sure you can't get the sum, but you can simplify the problem. All you need to do is combine like terms. -2i and 6i = 4i. 3 - 5 = -2.
Answer:
Ava is 26 and Grace age is 9
Step-by-step explanation:
x=ava's age
y=grace's age
3y-1=x
x+y=35
Substitute 3y-1 to x+y=35 for the value of x to find grace age
3y-1+y=35
4y-1=35
+1 +1
4y=36
y=9 now substitute 9, the y value in 3y-1=x to find ava's age
3(9)-1=x
x=26
to verify; 26+9=35
true 35=35
Answer:
2.86310
Step-by-step explanation:
It is small but is larger than two
So all the angles on one side should equal 180.
50+55= 105
180-105=75
12x+3=75
12x=72
12*6=72
x=6
