Question

Suppose y = 2x + 10. Find y if x = -2

Answer 1

y = 6

Step-by-step explanation:

Given parameters:

Given equation:

y = 2x + 10

And supposing; x = -2

Unknown:

y = ?

Solution:

We are going to solve this problem by substitution;

y = 2x + 10

since x = -2; input this into the equation to solve for y;

y = 2(-2) + 10 = -4 + 10 = 6

The value of y = 6