Find the value of 7u+2 given that -2u+8=6

The value of 7u + 2 is 9.

Step-by-step explanation:

To solve this problem, we first must find the value of u given the second equation.  The first step in simplifying this equation is to subtract 8 from both sides of the equation.  This is modeled below:

-2u + 8 = 6

-2u + 8 - 8 = 6 -8

-2u = -2

Next, we can divide both sides by -2 to get the variable u alone on the left side of the equation.

-2u/-2 = -2/-2

u = 1

Therefore, the correct answer is u = 1. Now, we can plug in this value for u into the expression that is given.

7u + 2

= 7(1) + 2

= 9

Thus, the correct answer is 9.

Hope this helps!

step-by-step explanation:

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: