Which transformation does NOT map the blue figure to the red figure?

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

What is the value of x when x + 7 = 21?