Answer:
x=3 and y=4
Step-by-step explanation:
Let's solve your system by substitution.
x+y=7;x+2y=11
Step: Solvex+y=7for x:
x+y=7
x+y+−y=7+−y(Add -y to both sides)
x=−y+7
Step: Substitute−y+7forxinx+2y=11:
x+2y=11
−y+7+2y=11
y+7=11(Simplify both sides of the equation)
y+7+−7=11+−7(Add -7 to both sides)
y=4
Step: Substitute4foryinx=−y+7:
x=−y+7
x=−4+7
x=3(Simplify both sides of the equation)
Answer:
x=3 and y=4
Answer:
x = 7, y = - 1
Step-by-step explanation:
Given the 2 equations
6x - 8y = 50 → (1)
4x + 6y = 22 → (2)
Multiplying (1) by 6 and (2) by 8 and adding will eliminate the y- term
36x - 48y = 300 → (3)
32x + 48y = 176 → (4)
Add (3) and (4) term by term to eliminate y
68x = 476 ( divide both sides by 68 )
x = 7
Substitute x = 7 into either of the 2 equations and evaluate for y
Substituting into (2)
4(7) + 6y = 22
28 + 6y = 22 ( subtract 28 from both sides )
6y = - 6 ( divide both sides by 6 )
y = - 1
Solution is x = 7, y = - 1
