if you meant 5x+9=3*15 then, 5x = 36, x = 7.2 if you meant 5x+9=3x+15 then, 2x = 6, x = 3
If: 5x+2y = 9 Then: y = -2.5x+4.5 in slope intercept form
5x-3=37 (Original Equation) 5x=40(Add 3 to the right side) x=8(Divide 40 by 5)
(1) 5x+y=-12 (2) 7x-3y=-30 From (1) one gets y = -12-5x Put into (2) 7x-3y = 7x -3 (-12-5x) = 7x + 36 +15 x = 22x +36=-30 22x = -30-36 = -66 so x = -3 and y=-12-5x = -12-5x-3= 3 The solution is (-3,3)
5x - 7y = 5 (subtract both sides by 5x) -7y = -5x + 5 (divide both sides by -7) y = (5x - 5)/7 If you want to solve for y = 0, then x = 1.
No. x=3. (5x3 is 15 or 5x =15-3=12)
x = -5
5x-2=13 +2 +2 5x=15 x=3
If y equals 5x-15 and x equals 1 then the value of y comes out to be -10. So y equals 5x-15 is -10.
30 + 5x = 15 + 10x 30 = 15 + 5x 15 = 5x x = 3
5x-3 = 37 5x = 37+3 5x = 40 x = 8
The only solution to this is x=0.
5x+15 = 6x-10 5x-6x = -10-15 -x = -25 x = 25
a linear equation solution 5x-37=13 5x=13+37 5x=50 x=10
This cannot be solved. It needs 2 equations to solve for 2 unknowns.
5x+25=10 5x+25-25=10-25 5x=-15 5x/5=-15/5 x=-3
No solution