Answer:
x = 3.8
Step-by-step explanation:
0.18(5x – 4) = 0.5x + 0.8
→ Expand out 0.18(5x – 4)
0.9x - 0.72 = 0.5x + 0.8
→ Multiply everything by 100 to get rid of the decimals
90x - 72 = 50x + 80
→ Minus 50x from both sides to collect the x terms
40x - 72 = 80
→ Add 72 to both sides to isolate 40x
40x = 152
→ Divide both sides by 40 to isolate x
x = 3.8
Answer:
Step-by-step explanation:
Factor using Rational Root Theorem.
This means our possible roots are
positve or negative (1,2,3,6). If we try positve 1, it is indeed a root.
This means that
is a root.
We can divide the top equation by the root (x-1). Our new equation is
Now we can factor this completely
So this equation in factored form is