Answer:
x = -345
Step-by-step explanation
2.3 + .02x + .4 - 4.8 = -9
2.7 - 4.8 + .02x = -9
-2.1 + .02x = -9
.02x = 6.9
x = -6.9 / .02
x = -345
Answer: x = -345
Step-by-step explanation:
2.3 + .02(x + 20) - 4.8 = -9
2.3 + (.02x + .4) - 4.8 = -9
-2.1 + .02x = -9
+2.1 +2.1
.02x = -6.9
.02/.02 -6.9/.02
x = -345
