Answer:
x= - 4
Step-by-step explanation:
2 * x^2 + 8 * x = x^2 - 16
2 * x^2 - x^2 + 8 * x + 16 = 0
x^2 + 8 * x + 16 = 0
(x + 4) * (x + 4) = 0
x = - 4
Answer:
8 is her brother's age
And she is 24
Step-by-step explanation:
As, her brother age = x
Her age = 3x
Their sum= 32
So, 3x + x = 32
= 4x = 32
x = 32/4
x = 8
So age of brother = 8
And Anjum = 24
So equation = 3x + x = 32
Answer:
x=12
Step-by-step explanation:
Answer:
x=2
Step-by-step explanation:
first divide by 3 left and right, then you get:
x+1 = 3
then subtract 1 left and right, then you get:
x=2
so, solutions appear by simplifying
90-69=21 degrees. This is our target answer. We'll write an equation to do this:
2x-1=21
Add 1 to each side to get:
2x=22
Divide by 2 to get that x=11
Plugging this in, we see that 2(11)-1+69=90, so our answer is correct.
:)