2007-12-07 10:23:42 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
It's z = 6/7!
2007-12-07 10:36:37 · answer #1 · answered by kusheng 4 · 0⤊ 0⤋
Simplifying
10z + -1(3z + -11) = 17
Reorder the terms:
10z + -1(-11 + 3z) = 17
10z + (-11 * -1 + 3z * -1) = 17
10z + (11 + -3z) = 17
Reorder the terms:
11 + 10z + -3z = 17
Combine like terms: 10z + -3z = 7z
11 + 7z = 17
Solving
11 + 7z = 17
Solving for variable 'z'.
Move all terms containing z to the left, all other terms to the right.
Add '-11' to each side of the equation.
11 + -11 + 7z = 17 + -11
Combine like terms: 11 + -11 = 0
0 + 7z = 17 + -11
7z = 17 + -11
Combine like terms: 17 + -11 = 6
7z = 6
Divide each side by '7'.
z = 0.8571428571
Simplifying
z = 0.8571428571
2007-12-07 18:32:02 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Multiply out to get:
10z -3z + 11 = 17
simpify to get:
7z = 6;
z = 6/7
2007-12-07 18:29:31 · answer #3 · answered by Robert C 3 · 2⤊ 0⤋
10z - (3z - 11) = 17
10z - 3z + 11 = 17
7z + 11 = 17
7z = 6
z = 6/7
2007-12-07 18:33:36 · answer #4 · answered by daniel 4 · 0⤊ 0⤋
10z - (3z-11)=17
10z - 3z +11 = 17
7z +11 = 17
7z = 17 - 11
7z = 6
z=6/7
2007-12-07 18:31:11 · answer #5 · answered by humanophobic 1 · 2⤊ 0⤋
OK
10z-(3z-11)=17
there is no number in front of the parenthesis so it is like multiplying by -1 (subtraction sign in front makes it a negative)
10z-3z+11=17
7z+11=17
-11 -11
7z=7
z=1
2007-12-07 18:29:32 · answer #6 · answered by Brianna 3 · 0⤊ 2⤋
10z-3z+11=17
7z+11=17
7z+11-11=17-11
7z=6
z=6/7
2007-12-07 18:48:23 · answer #7 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
10z-(3z-11)=17
10z-3z+11=17
7z+11=17
7z=6
z=6/7
2007-12-07 18:39:53 · answer #8 · answered by $$$$$$$$$$$$$ 2 · 0⤊ 0⤋
z=+/- 4
It's important to include both positive and negative 4 in your answer.
2007-12-07 18:27:42 · answer #9 · answered by Brahndon 1 · 0⤊ 2⤋