Answer:
Step 1 : Multiple both sides by 2
3x + 2y = 1
4x - 2y = 20
Step 2 : Eliminate 1 variable by adding the equations
7x = 21
Step 3 : Divide both sides by 7 to solve for x
x = 3
Step 4: Substitute the value of x into 3x + 2y = 1
3(3) + 2y = 1
Step 5: Solve for y
2y = 1 - 9
2y = -8
*divide by 2
y = - 4
Solution:
(x,y) = (3, -4)
7/8c +23/24 I think this is right dont use me as the only source tho
Answer:
1. option B is correct i.e., 
2. option D is correct i.e.,
.
3. option B is correct i.e.,
.
Step-by-step explanation:
1. Since the given equation is:

As we know that 
So, the given equation can be represented as:

2. Given equation is:

As we know that 
so the given equation can be represented as:
.
3. Given equation is:

by using the properties
,
and 

= 
= 
= 
= 
=
.
which is option B.
Answer: the answer is 1020
Step-by-step explanation: Because lets say 1032-133=899
so if we do 899+121=1020
Answer:
thanksssss! <3 :))))))))))
Step-by-step explanation: