Solve for x by cross multiplication
- Swap the sides of equation
- Divide both sides of equation by 30
Pretty sure it's B because 50 isn't divisible by any of the other choices
Equation is:
(q + 1 ) / 16= 4
For q:
Multiply 4*16
q + 1 = 64
Subtract 1
64-1=63
q = 63
9x^2-4x-3 and x=-2
= 9*(-2)^2 - 4*-2 - 3
= (9*4)+8-3
= 36+8-3
= 44-3
=41