Answer:
(x,y) (1,3)
Step-by-step explanation:
3x=-x+4
+x +x
4x=4
*divide/simply*
x=1
y=3(1)
y=3✓
y=-1+4
y=3 ✓
Answer:
5 10
12 5
Step-by-step explanation:
you add numbers in the same position.
2+3. 4+6
7+5. 5+2
Let the first number be x and second number be y.

+ (3-2y) = 129
I believe this is what your looking for.
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Answer:

Step-by-step explanation:
sin = opposite/ hypotenuse