3a+18+4a = 7a+18
12x+4y
45x
Answer:
Sine 3 books are for 60-
60/3
Rs20 (per book)
and 5 books for Rs 90-
90/5
Rs18 (per book)
Thus we can save 2Rs and 5 books for Rs 90 iscthe best buy
Answer:
a, c, a, a, b, c
Step-by-step explanation:
Yes unless it states that t stands for something else like t is substituting a number in the problem, but if it didn’t, then yes, t is the variable
−3=8x−4y
,Step 1: Flip the equation.
,8x−4y=−3
,Step 2: Add -8x to both sides.
,8x−4y+−8x=−3+−8x
,−4y=−8x−3
,Step 3: Divide both sides by -4.
,−4y/−4
,=−8x−3/−4
,Answer:
y=2x+3/4
