So you have
25x+10y=24
and
x+y=20
you can eith er subsitue or add
let's add
mutliply x+y=10 by -10
-10x-10y=-200
add to first equation
25x+10y=24
<u>-10x-10y=-200 +
</u>15x+0y=-176
15x=-176
divide both sides by 15
x=-176/15
subsitue
x+y=20
-176/15+y=20
add -176/15 to both sides
y=476/15
solution
(x,y)
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Answer:
14/3=x/2244-x
14(2244)-14x=3x
31416=17x
x=1848=poseurs
396= frauds
Step-by-step explanation:
Answer:
answer b
Step-by-step explanation:
Answer:
3n
Step-by-step explanation:
When subtracting like terms (numbers, or variable expressions that have the same variable, like these), you add the coefficients (the numbers attached to the variable) to simplify the expression.
5n - 2n
You have 5 "n"s and you subtract 2 "n"s, leaving you with 3 "n"s
Answer:
20 and 56
Step-by-step explanation:
76/2 = 38
38 - 18 = 20
38 + 18 = 56
20 + 56 = 76