0
By what number should you multiply the first equation to solve using elimintation -2x-4y equals 22 -6x plus 3y equals 21?
Wiki User
∙ 14y ago
3 and the solution is x = -5 and y = -3
When subtracting the equations remember that a - - is equal to a +
So: - 6x - - 6x = 0
Also remember that a minus times a minus that the product is always a plus.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Is the number sentence 8 plus 2 equals 10 an expression or an equation?
That word "equals" in there makes it an equation.
What number times what number equals 11 when you add it and equals -60 when you multiply it?
15 and -4
What number equals 150 but also equals 32?
4800 you can just multiply 150x32
What is the square root of a number?
It's what number multiply by itself that equals the number you currently have。
What does n mean in the equation I equals Anev?
Number density.
What is the number that you would multiply one or both of the equations -4 equals 5y equals 6 -6x-y equals 8?
There is no need. The first equation can be rearranged to a simple equation in just y. Multiply it by 0.2 to solve for y. Substitute the value of y in the second equation and rearrange to get a simple equation in x. Multiply by (1/6) to find x.
What is the factor of the number?
Factors are the numbers you multiply together. For example, in the equation 2 times 3 equals 6, the 2 and the 3 are both factors of 6.
Is the number sentence 8 plus 2 equals 10 an expression or an equation?
That word "equals" in there makes it an equation.
To multiply a number by itsself?
When you multiply a number by itself it equals the number in question to the power of two. For example, 4x4=16, but 4^2 also equals 16.
What number times what number equals 11 when you add it and equals -60 when you multiply it?
15 and -4
80 percent of what number equals 40?
For the equation 80% of what number equals 40, the unknown number is 50.
What number's can multiply that equals 21?
1x21 7x3
What does ce equal?
it equals the same number you multiply it by
9 plus 3 equals 722 5 plus 7 equals 536 6 plus 8 equals 847 7 plus 2 equals what ans will come?
Answer is 411 Logic: You multiply the two numbers in LHS of the equation and reverse the result to form the first two digits of RHS and for the 3rd digit you subtract one from the 2nd number on the LHS of the equation.
What number equals 150 but also equals 32?
4800 you can just multiply 150x32
What is the square root of a number?
It's what number multiply by itself that equals the number you currently have。
Does a positive number multiply a positive number equals a negative number or a positive number?
(+)(+)=(+) (-)(-)=(+) (-)(+)=(-) (+)(-)=(-) This is all.
