For f(x) = -3x + 19. what is the value of x for which f(x) = 4? X=-5

X = -1

X=5

X=6

Simplify the expression. -2/5(10+15m-20n)

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question

Find the product. type your answer in the space provided. use / for a fraction bar (example: 1/2) and ^ for an exponent (example: x^5). do not put spaces in your answer. (x -1 y 5)^2 · (2xy -2)^5