Answer:
I'm pretty sure that'd be 8567
−10x + 1 + 7x = 37
combine like terms
-3x +1 = 37
subtract 1 from each side
-3x = 36
divide by -3 on each side
x = -12
Answer: ![x=\bold{\dfrac{a(c-2)}{9+b}}](https://tex.z-dn.net/?f=x%3D%5Cbold%7B%5Cdfrac%7Ba%28c-2%29%7D%7B9%2Bb%7D%7D)
<u>Step-by-step explanation:</u>
9x + 2a = ac - bx
9x = ac - bx - 2a <em>subtracted 2a from both sides</em>
9x + bx = ac - 2a <em>added bx to both sides</em>
x(9 + b) = a(c - 2) <em>factored out x from the left and a from the right</em>
<em>divided both sides by 9+b</em>
Answer:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:(30/19,2/19)
Equation Form: x=30/19, y=2/19
Answer:
Step-by-step explanation:
1) Sum = - 9
Product = -36
Factors = -12 , 3 {-12 + 3 = -9 & -12*3 = -36}
3a² - 9a - 12 = 3a² + 3a - 12a - 12
=3a(a + 1) - 12(a + 1)
= (a + 1) (3a - 12)
2) 4a² + 38a - 20 = 4a² + 40a - 2a - 20
=4a(a + 10) - 2(a + 10)
=(a + 10)(4a - 2)
3) 11a² + 30a - 9 = 11a² + 33a - 3a - 9
= 11a(a + 3) - 3(a + 3)
=(a + 3)(11a - 3)