2026 April(R4A) Math Question 18
Algebraic & Function Expressions
- Systems of Equations
Translate to equations: X=3YX = 3YX=3Y and Z=X−19=3Y−19Z = X - 19 = 3Y - 19Z=X−19=3Y−19. X+Y+Z=37X + Y + Z = 37X+Y+Z=37 3Y+Y+(3Y−19)=373Y + Y + (3Y - 19) = 373Y+Y+(3Y−19)=37 7Y−19=37⇒7Y=56⇒Y=87Y - 19 = 37 \Rightarrow 7Y = 56 \Rightarrow Y = 87Y−19=37⇒7Y=56⇒Y=8
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