Isolate variable s: First, we need to isolate the variable s on one side of the equation. We will start with the first equation: 2−2s=43s+13. Let's move all the terms involving s to one side and the constant terms to the other side.
Add 2s to both sides: Add 2s to both sides to get all the s terms on one side:2−2s+2s=(43)s+13+2sThis simplifies to:2=(43)s+2s+13
Combine like terms: Now, we need to combine like terms on the right side. To do this, we need a common denominator. The common denominator for 43 and 2 is 4, so we convert 2 to 48:2=(43)s+(48)s+13
Combine s terms: Combine the s terms:2=(411)s+13
Subtract 13: Now, subtract 13 from both sides to isolate the terms with s:2−13=(411)sThis simplifies to:−11=(411)s
Divide by (411): To solve for s, divide both sides by (411):411−11=s
Multiply by reciprocal: When dividing by a fraction, multiply by the reciprocal: (−11)×(114)=s
Final solution: The 11s cancel out, and we are left with:s=−4
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