3. What is the y-intercept in the equation y= -2x + 5
2 answers:
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We can eliminate one of the variables to solve for the other variable, as in both equations, y has opposite coefficients. Combine these two equations:
Divide both sides by 2 to get x by itself:
Plug this value into the second equation:
Subtract 123 from both sides to get y by itself:
Malik has 123 domestic stamps and 89 foreign stamps.
Divide both sides by 2 to get x by itself:
Plug this value into the second equation:
Subtract 123 from both sides to get y by itself:
Malik has 123 domestic stamps and 89 foreign stamps.