Hi,
From the picture you can see how 5x and 4x add up to 90°.
4x + 5x = 90°
9x = 90°
x = 10°
Hope this helps! If my answer was not clear enough or you’d like further explanation please let me know. Also, English is not my first language, so I’m sorry for any mistake.
Answer:
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Step-by-step explanation:
Answer:
25% increase
Step-by-step explanation:
Answer:
-3x-7
Step-by-step explanation:
-3x and -6 aren't like terms, and neither are -3x and -1, so you leave -3x alone. You can combine -6 and -1. You simply add them as if they aren't negative and keep the negative sign. This results in -3x-7