Find y
(Secant tangent angles)

Which expression is equivalent to sq-80

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?