Solution for the equations is (-8, 2).
Step-by-step explanation:
- Step 1: Given equations are 2x + y = -7y and y = x + 10. Simplify the equations.
⇒ 2x + 8y = 0 -------- (1)
⇒ x - y = - 10 ---------- (2)
- Step 2: Multiply eq(2) with 2 to make coefficients of x equal
⇒ 2x - 2y = -20 ------- (3)
- Step 3: Subtract eq(3) from eq(1)
⇒ 10y = 20
⇒ y = 2
- Step 4: Find the value of x by substituting the value of y in eq(2)
⇒ x = - 10 + 2 = -8
