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Sagot :
Answer:
the answer is -7
Step-by-step explanation:
i cant explain how, i used a site called math-way but theres not actually a dash
Step-by-step explanation:
Substitution method can be applied in four steps
Step 1:
Solve one of the equations for either x = or y = .
Step 2:
Substitute the solution from step 1 into the other equation.
Step 3:
Solve this new equation.
Step 4:
Solve for the second variable.
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