0
Solve by substitution x plus 5y equal 10 and 7x minus 14y equal 49?
Wiki User
∙ 13y ago
set it up as x+5y=10 and 7x-14y=49 on top of each other and then multiply x+5y=10 by -7. That gives you -7x-35y=-70. cross out the X's and add the Y's. -21y=21 divide and get -1=y then sub. for x and solve.
X=15 and X=5
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How do you subtract fractions with a negative fraction?
if the question u are asking is something like this 1/2 - ( - 1/2 ) then the answer is simple all you have to do is solve the equation like this 1/2 - ( - 1/2 ) = 1/2 + 1/2 = 2/2 = 1 its the - (-1/2) that is important remember the rule minus and minus equal plus plus and plus equal plus minus and plus equal minus remember and i hope it helps :)
Solve using substitution x minus y equals 2 and x plus y equals -4?
-2
How do you solve this a squared minus b squared plus ac minus bc?
hello
When does 1 plus 1 equal 3 and 2 minus 1 equal 2?
When you are using non-standard definitions of "plus" and "minus", or of "equal".
How do you solve this equation -96 equals 33-y?
-96 = 33-y -96-33 = -y -129 = -y y = 129 Remember a minus divided into a minus is equal to a plus.
What does a minus and a plus equal?
a minus and a plus equal a minus number yeh dude
Does plus minus mean plus?
Same mathematical signs equal plus Different mathematical signs equal minus Plus Plus = Plus (+)(+) = + Minus Minus = Plus (-)(-) = + Plus Minus = Minus (+)(-) = - Minus Plus = Minus (-)(+) = - So the direct answer to your question would be: plus minus equals minus
How do you solve -x plus y equals 1 and -2 plus y equals -2 by substitution?
-x+y = 1 -2+y = -2 y = 1+x y = -2+2 => y = 0 By sustituting the values of x and y can be found x = -1 and y = 0 Remember that a minus from a minus is equal to a plus. So - -1+0 = 1
How do you subtract fractions with a negative fraction?
if the question u are asking is something like this 1/2 - ( - 1/2 ) then the answer is simple all you have to do is solve the equation like this 1/2 - ( - 1/2 ) = 1/2 + 1/2 = 2/2 = 1 its the - (-1/2) that is important remember the rule minus and minus equal plus plus and plus equal plus minus and plus equal minus remember and i hope it helps :)
How do you solve minus 2x squared plus 10x minus 14 equal 0?
It can't be solved because the discriminant of this quadratic equation is less than zero
Does a minus times a minus equal a plus?
Yes it does. A minus is the opposite of something, so the minus of a minus is a plus.
Solve using substitution x minus y equals 2 and x plus y equals -4?
-2
How do you solve this a squared minus b squared plus ac minus bc?
hello
What is Negtive times a plus equal?
+ times a + = a plus- times a + = a minus- times a - = a plus+ times a - = a minus
When does 1 plus 1 equal 3 and 2 minus 1 equal 2?
When you are using non-standard definitions of "plus" and "minus", or of "equal".
What does a plus and a minus equal?
burger
How do you solve this equation -96 equals 33-y?
-96 = 33-y -96-33 = -y -129 = -y y = 129 Remember a minus divided into a minus is equal to a plus.
