3.4(x-1)-1.2(2x-2)=7(0.5)+2(2
Solve for x
x=8.5
Graph
Share
Copied to clipboard
3.4x-3.4-1.2\left(2x-2\right)=7\times 0.5+2\times 2
Use the distributive property to multiply 3.4 by x-1.
3.4x-3.4-2.4x+2.4=7\times 0.5+2\times 2
Use the distributive property to multiply -1.2 by 2x-2.
x-3.4+2.4=7\times 0.5+2\times 2
Combine 3.4x and -2.4x to get x.
x-1=7\times 0.5+2\times 2
Add -3.4 and 2.4 to get -1.
x-1=3.5+2\times 2
Multiply 7 and 0.5 to get 3.5.
x-1=3.5+4
Multiply 2 and 2 to get 4.
x-1=7.5
Add 3.5 and 4 to get 7.5.
x=7.5+1
Add 1 to both sides.
x=8.5
Add 7.5 and 1 to get 8.5.
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}