require_once("functions.php"); function createSide($a,$b,$c,$varHere) { $choice = chooseNumber(8); $plus = " + "; $minus = " – "; $times = " × "; switch($choice) { case 1: //ax + b echo $a.$varHere.$plus.$b; break; case 2: //ax - b echo $a.$varHere.$minus.$b; break; case 3: //b + ax echo $b.$plus.$a.$varHere; break; case 4: //b - ax echo $b.$minus.$a.$varHere; break; case 5: //a(bx + c) echo $a."(".$b.$varHere.$plus.$c.")"; break; case 6: //a(c + bx) echo $a."(".$c.$plus.$b.$varHere.")"; break; case 7: //a(bx - c) echo $a."(".$b.$varHere.$minus.$c.")"; break; case 8: //a(c - bx) echo $a."(".$c.$minus.$b.$varHere.")"; break; } //end switch }// end createSide() function createEquation() { $max = 12; $variable = chooseVariable(); $varHere = "".$variable.""; $equals = " = "; $a = chooseSign()*chooseNumber($max); $b = chooseSign()*chooseNumber($max); $c = chooseSign()*chooseNumber($max); $d = chooseSign()*chooseNumber($max); $e = chooseSign()*chooseNumber($max); $f = chooseSign()*chooseNumber($max); createSide($a,$b,$c,$varHere); echo $equals; createSide($d,$e,$f,$varHere); } //end createEquation() do_html_header("Multi-Step Equations","Solve. NO CALCULATOR!"); echo "
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