Answer: 7
Step-by-step explanation:
Divide :)
Answer:
You can either use substation or you can use elimination on both of the problems
Step-by-step explanation:
Proportional: the same
6 / 36 = 0.166....
1 / 6 = 0.166...
So they are proportional.
You can also multiply/divide (depends) one of the fractions's numerator and denominator by 6 to get your answer.
6 / 36 = 6/6 / 36/6 = 1/6
1/6 = 1*6 / 6*6 = 6 / 36
Answer:
x=2 and y= -3
Step-by-step explanation:
This is a simultaneous equation. To solve this type of equation, there are three methods; substitution, Elimination and Graphical.
But here, we would be using the substitution method.
3x-y=9 Equation 1
2x-y=7. Equation 2
Getting y from equation 2, we have
-y= 7-2x
Multiply both sides by -
y= 2x-7 Equation 3
Substituting y for 2x-7 in equation 1, we have
3x- (2x-7)=9
3x-2x+7=9
x+7=9
x=9-7
x=2
Substituting x as 2 in equation 3
y=2x-7
y= 2(2)-7
y= 4-7
y= -3
