Sub in what X and y are:

. Solve the exponents (if the exponent is 2 multiply the whole number by itself twice, if it were 3 you would multiply the whole number by itself three times): 3·3=9, 3·3=9: 9(9)= 81. :)
Answer:
3/4
Step-by-step explanation:
1+3x=-x+4
1+3x-(-x)=4
1+3x+x=4
1+4x=4
4x=4-1
4x=3
x=3/4
Answer:
Step-by-step explanation:
Sum of all the angles of a triangle = 180°
∠A + ∠B + ∠C = 180
25 + 108 + ∠C = 180
133 + ∠C = 180
∠C = 180 - 133
∠C = 47°
7x + y = -5
-7x both sides
y= -7x-5
slope is -7
-3+7=4 y intercept is 4
y=-7x+4