SOLUTION: I am struggling some with solving equations using substitutions. Here is a one question on my homework assignment. y= 3x - 10 y= 2x -15 My answer was --> y= 5x^2

SOLUTION: I am struggling some with solving equations using substitutions. Here is a one question on my homework assignment. y= 3x - 10 y= 2x -15 My answer was --> y= 5x^2 - 25 Am

Question 26521: I am struggling some with solving equations using substitutions. Here is a one question on my homework assignment.
y= 3x - 10
y= 2x -15
My answer was --> y= 5x^2 - 25
Amy I even close, I really dont understand substitutions. My parents are working on getting me a tutor.
Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
SInce you know that y=3x-10 is your subsitution. Subsitute this number is the nest equation.
y=2x-15
3x-10=2x-15
3x-2x=-15+10
x=-5

y=2(-5)-15
y==-25

Hence, x = -and y= -25.
PAUL.
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