1. 9(2+3x)=45
2. 8(4+x)=64
Solve for x

1) x=1

2)x=4

Step-by-step explanation:

Solved the equation and checked using calculator

i belive those are the ones that are under 90 degreese.

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.