Solve 90*6+80*(-7)=left(90+80right)x

$$90 \cdot 6+80 \times (-7) = \left( 90+80 \right) x$$

Solve for x

$$x=-\frac{2}{17}\approx -0.117647059$$

Steps for Solving Linear Equation

Multiply 90 and 6 to get 540. Multiply 80 and -7 to get -560.

$$540-560=\left(90+80\right)x$$

Subtract 560 from 540 to get -20.

$$-20=\left(90+80\right)x$$

Add 90 and 80 to get 170.

$$-20=170x$$

Swap sides so that all variable terms are on the left hand side.

$$170x=-20$$

Divide both sides by 170.

$$x=\frac{-20}{170}$$

Reduce the fraction \frac{-20}{170} to lowest terms by extracting and canceling out 10.

$$x=-\frac{2}{17}$$