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What is 10y-4y?
10y-4y = 6
Can you show me how to solve graphically 3x plus 4y equals 5 and x-2Y equals 5?
3x + 4y = 5x - 2y = 5leads to:x = 5 + 2ySo:3(5 + 2y) + 4y = 515 + 10y = 510y= -10y=-1and therefore if y = -1 then x = 3.
3x plus 10y equals 7 -8x - 4y equals 17?
Multiply the first by 8 and the second by 3
How do you solve this 7x-4y-9 and 3x 2y-15 find x and y?
A1: 7x-4y=9 , 3x+2y=15 and 7x-4y=9, 6x+4y=30 so 13x=39 x=3 now plug it in for y 9+2y=15 so y=3 A2: The right expression is missing a + or - between the 3x and 2y. For the purpose of this demo, let's assume it is 3x+2y-15. It can be solved by multiplying the right expression by 2, then add the expressions. That will eliminate y. Then solve for x. When x is known, plug its value into either of the expressions and solve for y. To start: 2(3x+2y-15)=6x+4y-30 adding the two (7x-4y-9)+(6x+4y-30)=13x+0y-39=13x-39 solve for x
What is 10y equals 2y-6y plus 7?
10y = 2y - 6y + 7 10y =-4y + 7 10y +4y = 7 14y = 7 y = 1/2 = .5
What is 10y-4y?
10y-4y = 6
What is 18x plus 14y plus 3x - 10y?
It's a linear expression in two unknowns.It can be simplified a little bit:18x + 14y + 3x - 10y = 21x + 4y
Can you show me how to solve graphically 3x plus 4y equals 5 and x-2Y equals 5?
3x + 4y = 5x - 2y = 5leads to:x = 5 + 2ySo:3(5 + 2y) + 4y = 515 + 10y = 510y= -10y=-1and therefore if y = -1 then x = 3.
What is the simplification of the expression 3x plus 4y plus 2 plus 6y plus 3?
It is: 3x+10y+5 simplified
3x plus 10y equals 7 -8x - 4y equals 17?
Multiply the first by 8 and the second by 3
How simplify 5x plus 3y-2x plus 4y?
3x + 7y
How do you solve this 7x-4y-9 and 3x 2y-15 find x and y?
A1: 7x-4y=9 , 3x+2y=15 and 7x-4y=9, 6x+4y=30 so 13x=39 x=3 now plug it in for y 9+2y=15 so y=3 A2: The right expression is missing a + or - between the 3x and 2y. For the purpose of this demo, let's assume it is 3x+2y-15. It can be solved by multiplying the right expression by 2, then add the expressions. That will eliminate y. Then solve for x. When x is known, plug its value into either of the expressions and solve for y. To start: 2(3x+2y-15)=6x+4y-30 adding the two (7x-4y-9)+(6x+4y-30)=13x+0y-39=13x-39 solve for x
What number is 40 percent of 10y?
40% of 10 y = 40/100 of 10y =4y
What does evaluate meen in math?
In math evaluating is where you simplify an expression as much as possible. For example to evaluate 5+2 you simplify it so it is 7. To evaluate 5x+3x+4y you simplify it to 8x+4y.
What is 10y equals 2y-6y plus 7?
10y = 2y - 6y + 7 10y =-4y + 7 10y +4y = 7 14y = 7 y = 1/2 = .5
Solve this equation using subtitution x equals 4y and 3x-2y equals 20?
3x - 2y = 20 Substitute x = 4y into this equation: 3(4y) - 2y = 20 ie 12y - 2y = 20 10y = 20 so that y = 2 and then x = 4y gives x = 2*4 = 8
X equals -4y 3x plus 2y equals 20?
x = -4y so 3x = -12y Substituting in the second equation, -12y + 2y = 20 or -10y = 20 ie y = -2 And then x = -4y implies that x = 8 Solution: x = 8, y = -2
