Answer:
x=3
Step-by-step explanation:
3x=y y=9
fill y in with 9
3x=9
÷3 ÷3
x=3
Answer:
step 3 addition: 20 + 9 = 29
step 4 subtraction: 29 - 2 = 27
solution 27
Step-by-step explanation:
since there's no more multiplication or division, you add and subtract from left to right
Answer:
False
Step-by-step explanation:
Answer:
Well you can either straight up subtract from the total degrees of a triangle using the sum of both of the given angles, which would equal x, or you can make an equation. I’ll do both.
180-78-51=51, x=51
78+51+x=180
129+x=180
x=180-129
x=51
What does that mean then what do we need to do
sorry for asking
