Just add the side lengths together.
3x+3+2x+2+4x-1=9x+4
Answer: x = 13
Step-by-step explanation: First, we simplify the equation to get 4x + 7 = 5x - 6. Then, from there, we subtract 7 on both sides to get 4x = 5x - 13. Then we subtract 5x from both sides, which would give us -x = -13. Finally, we can divide both sides by -1 (because remember, x = 1) to get that x = 13. Hope this helps!
Answer:
21
Step-by-step explanation:
3 x 7 is 21
Answer:
it is a simultaneous equation.
the -9d can be cancelled to find the answer
