Answer:
The answer is C
Step-by-step explanation:
...
Distribute
3(x+3) = -2(2x-1)
3x+9 = -4x+2
Collect like terms
3x+4x = 2-9
7x = -7
x = -1
What? Can you try to rephrase it?!
Answer:
y - x + z
Step-by-step explanation:A good way to tackle this problem is to check for the signs of all the variables. In your original expression, x-y+z, x and y are positive and y is negative.
A^2 + b^2 = c^2 That's the Pythagorean Theorem
Sin B = b/c
m<A + m<B = 90° because there are 180° in a triangle
