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How do you Substitute x equals y plus 3 into x plus 2y equals 9?
Wiki User
∙ 13y ago
x = y+3
x+2y = 9 => x = 9-2y
y+3 = 9-2y
2y+y = 9-3
3y = 6
y = 2 and x = 5
Wiki User
∙ 13y ago
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How do you solve this linear system using elimination method 4x-2y equals 6 and -7x plus 2y equals -15?
4x-2y = 6 -7x+2y = -15 Add both equations together in order to eliminate y: -3x = -9 Divide both sides by -3 in order to find the value of x: x = 3 Substitute the value of x into the original equations to find the value of y: Solution: x = 3 and y = 3
What is the slope of the line perpendicular to the line 4x plus 2y equals 6?
4x+2y = 6 2y = -4x+6 y = -2x+3 Perpendicular slope is 1/2
Slope of 2y equals 6x plus 8?
The slope is 3. --------------------- 2y = 6x +8 /2 /2 /2 y = 3x + 4 Now that it's in y = mx + b form, m = slope, m= 3
What is th ordered triple of these equations x - 2y plus 3z equals -3 2x - 3y - z equals 7 3x plus y - 2z equals 6?
The ordered triple is (x, y, z) = (1, -1, -2)
Use the substitution method to solve the system of equations Enter your answer as an ordered pair 16x - 2y equals 74 2x - 2y equals 4?
16x - 2y = 74 (Eq 1) 2x - 2y = 4 (Eq 2) from Eq 2, 2y = 2x - 4 Substitute in Eq 1 16x - (2x - 4) =74 ie 16x - 2x + 4 = 74 ie 14x = 70 ie x = 5 2y = 2x - 4 = 10 - 4 = 6 y =3 Check 16 x 5 - 2 x 3 = 80 - 6 = 84 QED
X equals 2y-3 x equals 2y plus 4?
This means that 2y - 3 = 2y + 4 which is not possible.
2y-3 equals y plus 2?
No 2y-3 is not equals y plus 2AND how old are u?
What is the value of the expression 3x plus 4-2y if x equals 5 and y equals -3?
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5x plus 2y equals 19 x - 2y equals -1?
(3, 2)
-3 plus 3y equals 2y plus 5?
3y - 3 = 2y + 5 3y - 2y = 5 + 3 y = 8
3 equals 2y plus 7x in standard form?
-7x - 2y = -3
What is the solution of 2y plus 3x equals 0 x equals -1?
2y + 3x = 0 2y + -3 = 0 2y = 0 + 3 , 2y = 3 y = 3/2 y = 1.5 x = -1
What is 8y minus 3 equals 15 plus 2y?
y equals 3
2y plus 3 equals 3y plus 9?
2y + 3 = 3y + 9 2y - 3y = 9 - 3 or -y = 6 so y = -6
What is the solution for 3x plus 2y equals -2 and 6x-y equals 6?
(A) 3x + 2y = -2 (B) 6x - y = 6 (A) + 2(B): 3x + 2y + 12x - 2y = -2 + 12 or 15x = 10 or x = 2/3 substitute this value of x in (A) 2 + 2y = -2 2y = -4 and y = -2 Answer: x = 2/3, y = -2
What is 5y equals 9 plus 2y equals?
Solving for y: 5y = 9 + 2y 5y - 2y = 9 3y = 9 y = 9/3 = 3
What is the answer to this problem 5x plus 2y equals 19 and x-2y equals -1?
x = 3 and y = 2
