Answer:
y = 
Step-by-step explanation:
Given
3x + 2y = 6 ( subtract 3x from both sides )
2y = 6 - 3x ( divide both sides by 2 )
y =
2x + y = 5
x − 2y = 10
y = 5 − 2x
x − 2(5 − 2x) = 10
x − 10 + 4x = 10
5x − 10 = 10
<em>add 10 to each side</em>
<em>5x-10+10 = 10 + 10</em>
<em>5x=20</em>
5x = 0 <em>this is the error</em>
He needs to add 10 to each side
D. 171
-
Explanation:
4(2+5)^2 - 5^2
4 x 7^2 - 5^2
4 x 49 - 25
196 - 25
171
Answer: D. 171
Answer:
700 is your answer
Step-by-step explanation:
ok so 5x120=600 +100=700 so 700 is your answer
