Answer:
y=-8.5
Step-by-step explanation:
You need to start by combining like terms.
So you would add -0.3y to both sides. Next you will subtract 21.3 from both sides. You should now have 5.4y=-45.9. At this point you will divide both sides by 5.4 giving you your answer of -8.5
5.1y + 21.3 = -o.3y - 24.6
+o.3y +0.3y
5.4y + 21.3 = -24.6
-21.3 -21.3
5.4y = -45.9
÷5.4 ÷5.4
y = -8.5
