Question

solving a system of linear equations using substitution
solve this system of equations using substitution:
\ty = 2x - 4
\tx + 2y = 10
step 1: substitute for y in the second equation. which is the resulting equation?
step 2: which is the next step to solve for x?
options: distribute 2, add 4, subtract 10

Explanation:

Step1: Identify substitution result

We substitute $y=2x-4$ into $x+2y=10$, getting $x+2(2x-4)=10$.

Step2: Select next algebraic step

To simplify $x+2(2x-4)=10$, we first apply the distributive property to expand $2(2x-4)$.

Answer:

Distribute 2