Question 9142
-7.5 - 0.9 = 5.7x + 4.5        ....................subtract 4.5 from both sides


(-7.5 - 0.9) -4.5 = (5.7x + 4.5) -4.5


-8.4 -4.5=5.7x


-12.9=5.7x                     ......................divide both sides by 5.7


{{{(-12.9)/5.7}}}={{{(5.7x)/5.7}}}  


{{{(-12.9)/5.7}}}=x  
x= -2.263