Decide whether each equation is true for all, one, or no values of x. 1. 2x +8= -3.5x + 19
2.97 - 2) = 7x + 5
3.3(3x + 2) – 2x = 7x + 6

Find the given elements if matrix d:

Find the solution of system of equation y= x-4 y=4x+2

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days