Simplify both sides of the equation.
(−7.8)(x)+(−7.8)(6.5)=−25.74 −7.8x+−50.7=−25.74 -> −7.8x−50.7=−25.74
Add 50.7 to both sides.
−7.8x−50.7+50.7=−25.74+50.7 -> −7.8x = 24.96
Divide both sides by -7.8.
−7.8x /−7.8 = 24.96/−7.8
And as a decimal
X= −3.2
Hope this helped. (got taken off because I did the steps? oo well)