Hey!
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First Equation:
2x + 3 = -7
2x + 3 - 3 = -7 - 3 (Subtract 7 to both sides)
2x = -10
2x/2 = -10/2 (Divide 2 to both sides)
x = -5
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Second Equation:
4.5x - 7 = 20
4.5x + (-7) + 7 = 20 + 7 (Add 7 to both sides)
4.5x = 27
4.5x/4.5 = 27/4.5 (Divide 4.5 to both sides)
x = 6
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Third Equation:
-3x + 7 = 28
-3x + 7 - 7 = 28 - 7 (Subtract 7 to both sides)
-3x/-3 = 21/-3 (Divide -3 to both sides)
x = -7
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Answers:
2x + 3 = -7 → x = -5
4.5x - 7 = 20 → x = 6
-3x + 7 = 28 → x = -7
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Hope This Helped! Good Luck!
Answer:
p-6=-14
Step-by-step explanation:
since it is said that it is the difference between them
Answer:
8
Step-by-step explanation:
or 8/1. Just flip it!
Answer:
x=1, y= -1
Step-by-step explanation:
x = 2y +3
3x -y = 4
Use the substitution method because we have x= something in terms of y
3 (2y+3) -y = 4
6y + 9 -y = 4 subtract 9 from both sides
6y -y = 4-9 combine like terms
5y = -5 divide both sides by 5
y = -1
x= 2*(-1) +3 = -2+3 = 1
