sovle 7x + 12x -9

Sovle w^2-13w+42=0 I get -6,-7 is this correct????

how would you sovle this? multiply: (a + 5) (a - 5)

x+y=0 3x+y=-4 Sovle each system of equation by graphing. If got the answer (-3,3), but it'...

5x/9<8 please sovle thanks

sovle for the value of x first angle 25 second angle 5x a - 65 b - 10 c - 50 d - 13

SOVLE FOR X: 15X =225

10=6n-8 sovle for n

z^?/z^7=z^12 sovle ?

I =prt to sovle for r

sovle 8(0)-6(y-12)=0

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