2x + y-z=3 -x+y+27 = 0 3x + 2y +2=9
1 answer:
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Answer: 55
Step-by-step explanation:
Begin by cubing each side of the equation to get rid of the cubic root.
add 4
Divide by 4
Check the picture below.
∡a has a vertical angle sibling of 40°, and vertical angles are always congruent.
∡b is the 3rd angle in a triangle, the other two are 40° and 90°, recall all interior angles in a triangle add up to 180°.
∡c is a linear angle, namely an angle on the same flat-line as another, and linear angles always add up to 180°.
