Solve for z
z=-10
Share
Copied to clipboard
1.4z-6-2.9z=9
Subtract 2.9z from both sides.
-1.5z-6=9
Combine 1.4z and -2.9z to get -1.5z.
-1.5z=9+6
Add 6 to both sides.
-1.5z=15
Add 9 and 6 to get 15.
z=\frac{15}{-1.5}
Divide both sides by -1.5.
z=\frac{150}{-15}
Expand \frac{15}{-1.5} by multiplying both numerator and the denominator by 10.
z=-10
Divide 150 by -15 to get -10.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}