Question

- 8th Grade Math -
Solve the system of equations:
2x - 4y = 10, x = 2y + 5

Answer 1

All real numbers

Explanation:

Since x=2y+5, and 2x-4y=10, substitute 2y+5 for x into 2x-4y=10

2(2y+5)-4y=10

Use distributive prop.

4y+10-4y=10

10=10

Since both sides of the equation are always equivalent,

All real numbers work, since the two equations are the same line.