2z+9.75-7z=-5.15
z = 18.5 6z - 24 = 2z + 50 Take the -24 to the other side of the equals and change its sign; take the 2z to the other side of the equals and change its sign: => 6z - 2z = 50 + 24 => 4z = 74 Divide both sides by 4: => z = 18.5
z = 3.6
Solve this system of equations. 5x+3y+z=-29 x-3y+2z=23 14x-2y+3z=-18 Write the solution as an ordered triple.
3x + y + z = 63x - y + 2z = 9y + z = 3y + z = 3y = 3 - z (substitute 3 - z for y into the first equation of the system)3x + y + z = 63x + (3 - z) + z = 63x + 3 = 63x = 3x = 1 (substitute 3 - z for y and 1 for x into the second equation of the system)3x - y + 2z = 93(1) - (3 - z) + 2z = 93 - 3 + z + 2z = 93z = 9z = 3 (which yields y = 0)y = 3 - z = 3 - 3 = 0So that solution of the system of the equations is x = 1, y = 0, and z = 3.
(-3) x (-2z - 7) = 6z + 21 = 3 (2z + 7)
2z - 5 = 11 Add 5 to both sides: 2z = 16 Divide both sides by 2: z = 8
2z+9.75-7z=-5.15
16(2z-3)
60j + 2z = 6
y and ½z
z = 18.5 6z - 24 = 2z + 50 Take the -24 to the other side of the equals and change its sign; take the 2z to the other side of the equals and change its sign: => 6z - 2z = 50 + 24 => 4z = 74 Divide both sides by 4: => z = 18.5
8
2z-3 equalls 0 and 2z equalls 3 and z equalls 3/2 therefore z = 1.5
2z+17=21 subtract 17 from both sides. 2z=4 divide both sides by 2 z=2
The answer to 2Z plus 9.75 subtract 7Z subtract equals 14.90. This is a math problem.
2z-7=13 +7 +7 add 7 to each side2z=20/2 /2 divide each side by 2z=10 is your answer