-5x2 = -75 x2 = 25 x = ±sqrt( 25 ) x = ±___
5x-19 = 16 5x = 16+19 5x = 35 x = 7
you multiply the entire "x over -5" by negative five to cancel it out, as well as multiplying the other side of the equation (5) by negative five. your answer should be x= -25-5( x/-5 ) = ( 5) -5x = -25
-5x+50 = 25 -5x = 25-50 -5x = -25 x = 5
x=7
-5x2 = -75 x2 = 25 x = ±sqrt( 25 ) x = ±___
128
5x-19 = 16 5x = 16+19 5x = 35 x = 7
you multiply the entire "x over -5" by negative five to cancel it out, as well as multiplying the other side of the equation (5) by negative five. your answer should be x= -25-5( x/-5 ) = ( 5) -5x = -25
5x = 25Divide both sides by 5:x = 5
-5x+50 = 25 -5x = 25-50 -5x = -25 x = 5
30
x=7
This cannot be solved. It needs 2 equations to solve for 2 unknowns.
you cant
23
7