Answer:
The solution of given system of equations is (1,1) and the first step is divide the second equation by 5 then multiply the resulted equation by 3. After that subtract resulted equation from first equation to eliminate x.
Step-by-step explanation:
The given equations are
[tex]3x+4y=7[/tex] .... (1)
[tex]5x+10y=15[/tex] .... (2)
Step 1: Divide second equation by 5.
[tex]x+2y=3[/tex] ..... (3)
Step 2: Multiply equation (3) by 3.
[tex]3x+6y=9[/tex] .... (4)
Step 3: Now subtract equation (4) from (1).
[tex]3x+4y-(3x+6y)=7-9[/tex]
[tex]3x+4y-3x-6y=-2[/tex]
[tex]-2y=-2[/tex]
[tex]y=1[/tex]
Step 4: Put this value in equation 1.
[tex]3x+4(1)=7[/tex]
[tex]3x=3[/tex]
[tex]x=1[/tex]
Therefore the solution of equations are (1,1).
Answer:
C. Solve for x in the second equation
Step-by-step explanation:
just did it on edge 2020
