Pls help...

solve for x in the following...pls explain

a)7x+5=3x-1
b)5x+12=3x+14​

Simply 8x squared + 5(7x squared- x) - 2x =

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

Will mark brainlist what is the slope of the line passing through the points (-2, -8) and (-3,-9)? -7/5-5/71-1