the equation is 3x+y=26 x=7
solve for y then find the value of y for the given value of x
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3x+y=27, when x=7
1. Replace any x in the equation with 7.
3(7) + y=27
3. Solve for y.
4. Check your answer by inserting x=7 and y=6 into the original equation.
Yes, it checks.
To solve the first equation for y, isolate y.
3x + y = 26
Subtract 3x from both sides of the equation.
y = 26 - 3x
Now find the value of y for the corresponding value of x.
y = 26 - 3 (7) = 26 - 21 = 5
Just use the method of substitution . Substitute X =7 in the first equation and solve for y.