Answer:
Step-by-step explanation:
Let's solve your system by substitution.
2x+3y=15;x+y=6
Rewrite equations:
x+y=6;2x+3y=15
Step: Solvex+y=6for x:
x+y=6
x+y+−y=6+−y(Add -y to both sides)
x=−y+6
Step: Substitute−y+6forxin2x+3y=15:
2x+3y=15
2(−y+6)+3y=15
y+12=15(Simplify both sides of the equation)
y+12+−12=15+−12(Add -12 to both sides)
y=3
Step: Substitute3foryinx=−y+6:
x=−y+6
x=−3+6
x=3(Simplify both sides of the equation)
Answer:
x=3 and y=3
Inequalities are just like equations it's just that the sign flips anytime you multipliy or divide by a negative number
1.

First Add 7 to both sides

2.

First Subtract 12 From Both Sides
Answer:
- 
Step-by-step explanation:
Given
× -
( multiply numerators and denominators together )
= - 
= - 
Answer: okay sir
Step-by-step explanation: